Login to the application that you want to delete.
Click on "Delete Application" in the right top corner.
- There will be a popup window "Confirm Deletion", click "OK"
Databases -> CallistoAppDisctionary -> Tables -> right click on dbo.Application -> Edit Top 200 Rows. (You can find all your applications available from modeler are here)
Highlighted the row of you want to delete -> right click on it -> Delete
- Done! You can go back to modeler to check whether you can still see the deleted row.
Deleting the row in CallistoAppDictionary is a way of doing this if you have SQL access. The added benefit of using SQL is that you can re-register the application while still keeping the DB for use later.
In general we recommend never to use SQL unless necessary since it a much more techie solution. The added benefit of not using SQL is that you don't need administrator access to delete an application from the Modeler.