Percio,
I am struggling with the same issue. The Git integration is not seamless and error prone. The feature that you mentioned seems to be ideal for the issue. In fact, i was thinking of doing similar thing.
I have installed the latest fix for 912 designer. However, I am not seeing the feature that you mentioned. Do you have a fix ID that i can use to check some release notes?
Local service development feature version is 9.12.0.0000-0236
Appreciate your help!
Thanks,
Sudhish