Configuration via app.json

"mapapps_etl": {

      "MapappsETLTools": [
       {
          "fmeServerConfig": {
            "fmeServerUrl": "https://<FME Flow URL>",
            "workspaceName": "<Workspace Name>.fmw",
            "repositoryName": "<Repository Name>",

            // deactivate to use the URL without the map.apps proxy.
            // Required if the FME Flow is called directly or via ETL Proxy Servlet or security.manager EE.
            "useProxy": true,

            // true if uploads should be sent to a validation workspace before continuing with the main process.
            "useAnalyzeWorkspace": false,

            // analyzeWorkspace is only required if useAnalyzeWorkspace is set to true.
            // Has to be a workspace in the same Repository as the main workspace.
            "analyzeWorkspace": "<Analyze Workspace Name>.fmw",

            // Optional, timeout for http requests. Defaults to 600000 ms
            "timeout": 600000
          },
          "etlTool": {

            // can be an empty array or any of the given values.
            // The parameter window is always shown if the parameters aren't hidden
            // see fmeParameterOpts.hiddenParameters
            "inputs": [
              "upload", "extent", "mapfeatures", "resultcenter", "result-ui", "search-selection"
            ],

            // in comparison to the inputs, only one output is allowed.
            // Can be "map", "status" or "download"
            "output": "map",

            // specifiy width and height in pixels of the tool.
            "marginBox": {"w": 550, "h": 500, },
            // marign box used for ifram reports
            // (see "message" property in the FME response)
            "iframeMarginBox": {"w": 550, "h": 500, }
          },
          "etlToolSettings": {
            // list of FME Published Parameters.
            // If all parameters of the workspace are selected, the parameter dialog will be hidden.
            "hiddenParameters": [],

            // only required if the input methods is set to "extent".
            // Can be "rectangle", "polygon", "polyline", "line" or "point"
            "extentType": "rectangle",

            // Max size for the input type extent in Km²
            "maxExtentArea": "100"

            // only required if the input method is set to "mapfeatures".
            // Can be contain one or multiple selection tools: "point"|"rectangle"|"polygon"|"*"
            "mapFeaturesSelectionMethods": ["rectangle"],

            // IDs of layers that should not be shown in the "Download features from map" dialog. * Can be used as a wildcard.
            "mapFeaturesHiddenLayers": [
                "layerIdToBeHidden",
                "layerId_*"
            ],

            // only required if the input method is set to "upload" and analyze is configured.
            // If false, feature types are collapsed/hidden initially.
            "showFeatureTypes": true,

            // optional for input method "upload".
            // Allowed file extensions can specified as a comma separated list.
            // If missing, all files will be allowed.
            "allowedFileExtensions": ".kml,.dwg",

            // optional: for input method "upload".
            // Maximum file size in Mb.
            "maxUploadSize": "10",

            // optional: to overwrite the configuration of additional files to uploaded files.
            // Main extension -> auxiliary extension -> mandatory true/false.
            // With this example PNG without world file are accepted but Shapefiles without
            // projection file are not.
            "uploadExtensionDependencies": {
              "shp": {
                "prj": true
              },
              "png": {
                "pgw": false
              }
            },

            // Hide columns of the analysis for output in the result table,
            // i.e. "coordinate_system", "format_long", "attributes", "geometry_types"
            // Only used if "useAnalyzeWorkspace" = true
            "hiddenAnalyzeColumns": ["format_long"]

            // optional: run the process asynchronously even if now mail adress is provided.
            // This option should also be used, if the mail adress is appended by the
            // ETL Proxy Servlet in the backend.
            "runAsynchronously": false,

            // optional: for output methods "status" and "download".
            // The parameter opt_requestermail will be set to mandatory.
            "emailIsMandatory": false,

            // optional: mail address of currently logged in user is attached to
            // workspace call as opt_requesteremail.
            "provideMapappsEmail": false,

            // optional: user name of currently logged in user is attached to
            // workspace call as mapapps_etl_user.
            "provideMapappsUser": false,

            // optional: maximum number of features per layer allowed while drawing the result on the map.
            // All excess features will be omitted.
            "maxFeaturesPerLayer": 10000,

            // otpional: group layer name (visible in toc), defaults to "ETL".
            "groupLayerName": "Data Upload",

            // optional: popup type
            "popupType": "default",

            // optional: disable popups for new layers. Default: true
            "popupEnabled": false,

            // optional: set a map scale.
            // Only applies, if only one feature is supposed to be displayed on the map.
            // A value of 10000 means a map scale of 1:10000.
            "scaleForIndividualFeatures": 10000,

            // optional: opens a popup for the first feature.
            "automaticallyOpenPopup": true,
            // optional: if more than one feature is available, specify how many popups should be loaded.
            // defaults to 1.
            "numberOfAllowedPopupsForMultipleFeatures": 5

            // optional: use number input instead of sliders for Published Parameters
            // all slider ui elements will be swapped to number inputs (default is false)
            "useNumberFieldInsteadSliders": true,

            // optional: the user has to accept the terms of use before starting the workspace.
            "acceptTermsOfUse":  false,

            // Attribute names that should not be displayed in the search input dialog.
            "searchSelectionHiddenAttributes": ["id"]

            "resultCenterDownload": {
            // default is "selected".
            // With "all" everything will be downloaded even if now individual entries in the
            // resultcenter are selected.
              "downloadMode": "all"
              // default is false.
              // With true, the attribute filter option will not be shown.
              "hideAttributeFilter": true,
            }

          },
          "title": "Tool Title",
          "tooltip": "Tooltip",
          "iconClass": "icon-upload",

          // tool id used to configure tool in the toolsets
          "id": "mapapps_tool_id",

          // set custom values for published parameters
          "customPublishedParameters": {
            "AnyPublishedParameterId": "Prefill default value for a specific published parameter"
          }

           // optional: specify i18n values for each tool individually if necessary.
          "i18n": {
            "en": {
              "title": "Title - EN",
              "uploadExplanation": "Upload Explanation - EN",
              "uploadExplanationFooter": "Footer -EN",
              "extentExplanation": "Choose your area of interest on the map.",
              "mapFeaturesExplanation": "Choose layers from which vector graphics should be chosen. Then select elements on the map.",
              "furtherInformation": "Further information",

               // Error messages can be created from within the FME workspace.
              // Append your i18n strings here for custom error messages.
              "transformationErrors": {
                    "NO_FEATURE_WRITTEN": "The process didn't result in any outputs.",
                    "FILE_COULD_NOT_BE_READ": "The file ${0} could not be read.",
                    "TOO_MANY_FEATURES": "The maximum number of features for one layer was reached ${0}. Some features were omitted."
                },
               // optional: localize/overwrite prompt of Published Parameters.
              // The key is the parameter name in FME.
                "fme_published_parameter": {
                    "opt_requesteremail": "Enter Mail Address"
                }
            },
            "de": {
              "title": "Title - DE",
              "uploadExplanation": "Upload Erklärung - DE",
              "uploadExplanationFooter": "Footer - DE"
            }
          }
        }
    ]
}