Hi rogeriodec_games,
Thank you so much for your feedback. As this new UI is currently in beta, we are still actively working on developing this feature and making it better. I’d like to address each issue you mentioned here individually.
For Studio saving the column dimensions, this will be added to the beta in about 2 weeks. We have added this functionality, but it takes a while for changes to propagate to users.
Rearranging the columns sounds like an interesting feature for users to have, and I will talk with our design team about how it would look.
We do allow hiding columns for this beta, but only for specific windows where we felt like this ability would be crucial, namely where there are optional values users might want to hide. The Breakpoints and Call Stack window in particular have this feature. If you open the menu in the top-right of these windows, you will see a dropdown menu where you can toggle column visibility.
As for not saving breakpoints and losing currently opening script tabs when enabling and disabling the beta, this is something I cannot reproduce on my instance of Studio, and I would ask that you PM me a video of this behavior happening so that I can track down a fix for it more easily.
Thanks again for your feedback. Once again, we are still actively developing this beta, and we prioritize fixing issues with the beta mentioned by users, so we hope you check back with this beta soon to see the progress that we’ve been making.
This is a great change, Roblox please keep this up! I understand everyone in the community won’t be pleased with every update, but changes like this help us loads!