Skip the Show Data Type modal and go straight to the Data Type Selection modal
Service Studio
Development Environment 11.53.7 (Build 60881)

I always wonder why we get a unneeded modal when we want to change the data type of variable. I use this method when I either want to change to a list or need to select a Data Type via search (because the dropdown is awful when you have a large number of Data Types with similar names). 

The window in question: 

You get here when you select a variable, double click on the "Data Type" field. This window doesn't add anything to my experience. It doesn't tell me something new, it doesn't help me going forward. The window that I do need is opened after I click on the Data Type Name in this modal. 

We then get this modal:

In this window I can do some useful stuff. I can search in my data types (some names are very much alike) and select a new one. Exactly what I wanted to achieve.

So in short. Skip Window 1, Instead open Window 2 when I double click on the Data Type field.

Changed the category to
Service Studio
Changed the status to
on 14 Jul 2022

Marking the idea as implemented as we no longer have this dialog in Service Studio. Data Types are now selected directly in the properties pane drop-down.