Was looking forward to this feature, but it is not showing up for me in this update.
The release notes state to ‘simply restart the software and press Ctrl + W to reset the layout.’ but I have tried this and no joy either… any ideas??
Belo is what should happen (but does not for me)…
Not working for me either.
Not working for me too in MacOS!
Furthermore, after trying Command + W (reset the layout) and restarted Bambu Studio the sidebar resized to the minimum (see the attached pic) and every time I restart BS, I have to hit Command + W to make it bigger!
Hope they will fix this as I like this new feature too. 
Edit: solved my “resized to the minimum” issue in MacOS editing the BambuStudio.conf file. Now, while the resizing feature does not work anyway, at least, when I open Bambu Studio, the sidebar is opening as before and not stretched like in the picture.
Same here on Mac OS 15.6 Bambu Studio 2.2.0.85.
I also have problems since 2.2.085. The above mentioned non resizable sidebar, but even worse, the whole working area is just a big blank space.
Running on Fedora WS.
+1 not working. works in beta 2.2.0.68. OSX as well
+1. Windows 10, 2.2.0.85.
I can confirm this not working on both Windows and Linux (Linux Mint 22).
It should be resizable now,May this can help you.
Hello, please find the help menu, open the configuration folder, delete Bambustudio.conf, and then try restarting the software.
Thanks - followed your instructions, but this did not work for me.
No joy unfortunately the config files get recreated on reboot but the issue remains.
Hi zhou.xu
I tried the ‘v02.02.00.85_portable’ download from github that you mentioned, but it doesn’t seem to launch properly (just shows an empty grey box splash screen & then closes)… so I haven’t been able to test it out properly I’m afraid.
Let me know if you know what may be causing that & if there’s anything else that needs to be tested.
Can you make sure you are using V2.2.0.85( Release 2.2.0 Public Release · bambulab/BambuStudio)?
Yes I am on that version. Solved with help of @zhou.xu though just now… method is as follows:
Launch Bambu Studio,
Select ‘Help’ menu and click on the ‘show configuration folder’,
Then close Bambu Studio.
Only then should you delete the BambuStudio.conf file from the previously opened folder, and then restart the software again.
Requires re-logging into your account and confirming printers, filament preferences again but you should then have access to the resizable window 
That sounds… concerning. Do you lose your user filament presets (and user global parameter presets) with that? Or are those still intact?
Nope - they all seem fine
I found another method to fix the problem on Github.
The idea of deleting my Studio configuration and then resetting my preferences was not appealing, even though I knew presets and calibrations would not be affected.
In Windows, the file to be edited is BambuStudio.conf in the hidden folder “C:\Users%username%\AppData\Roaming\BambuStudio”, which is kind of difficult to access.
Studio must be closed before saving the edited file. I opened Studio, used the Help menu item “Show configuration folder” to access the hidden folder in File Explorer, then closed Studio. I loaded BambuStudio.conf into my text editor (NotePad++) using a right-click and “Open with”.
I found that “enable_sidebar_resizable” was set to false, changed it to true, and saved the file.
Restarting Studio, the sidebar still was not resizable. Ctrl+W reset the layout and finally I could resize the sidebar.
Neat, assuming that works for anyone I have marked it as the best solution yet
Thanks for digging that out… I was going to do a diff on my config file to see what parameters changed as I thought it was going to be some parameter that needing settings/resetting. Worked for me on Windows. Just needed to collapse the sidebar first so that Ctrl+W had something to do.
