Hello,
This issue was raised to me by one of my coworkers. They used to be able to type their snippet trigger and press space or enter to open up the drop box then using the arrow keys and the enter button they were able to select multiple answers from the dropdown. It seems this functionality no longer works and instead after selecting a single option you are forced to tab multiple times to reopen the selection and select another singular option. Please let me know if anyone has a fix to this or maybe its a backend thing from some recent update.
The other option is clicking but lets be honest, noone wants to do that 
Thanks!
Hi @Mujahid_Ghazal - it seems like you referring to the multiselect option in form menus. Here's an example:
This is multiselect: {formmenu: choice a; choice b; choice c; multiple=yes}
This is single select: {formmenu: choice a; choice b; choice c; multiple=no}
Hey @Dan_Barak1 , yes I am referring to the multi select option. Previously it was possible to use the arrow keys and enter to select all applicable options. Now it seems to only allow one selection before having to cycle tab back into it. When I use the example you show it works, I will double check my snippets. Thanks!
I copied your exact example on my end it doesn't seem to work for me as it does on the preview above
Hi @Mujahid_Ghazal Welcome to the forum! 
We are able to reproduce the issue you are facing. Apologies for the inconvenience! We'll get this fixed asap. I'll let you know once the fix is live in public extension.
In the meantime, would you be interested to join our Beta extension to receive the fix sooner?
Hey!
Glad to hear it was reproducible, looking forward to the fix!
Sure, I would be interested in joining the beta extension, but what would that entail as I am part of a company text blaze.
Thanks! I will email you with the next steps.
Update on this: this issue is now fixed in the public extension and the fix is rolled out to all users.