The Identiy Custom Tool can be used to automatically open external application which are linked to a search result. If only one application was found on the pointer set in the map the external application will open directly. Otherwise the desired external application can be selected from a list.
Note: To have the search result available for the custom tool, it has to be restricted for "Custom Tool" on Search Result View level first. Then it can be selected as a sub node of the Identify Custom Tool.

Search results for Identify - Identify Custom Tool Configuration
Note: The Identify Custom Tool supports only the tool mode "Click point".