Here’s a pretty simple little batch script we run to open Studio into our test places directly (places that aren’t set as the start place) without needing to first open Studio and then manually select a different place to edit. Maybe others will find it useful 
SET LAUNCH_PATH=%localappdata%\Roblox\Versions
START “” “%LAUNCH_PATH%\RobloxStudioLauncherBeta.exe” -task EditPlace -placeId < insert your place id here >
Just copy these two lines into a text file and save as a .bat. You can then simply run this .bat to open Studio directly into any place you have access to. (Remember to use your desired place id in place of the template brackets in the example)