Use keyboard to go quicker to allocate tags
When you want to allocate a tag to one of several card, and once you are in the list of tags, it would be go to do just as Outlook allows to do :
- type the first letter of the tag==> it birng the cursor to the closer tag starting with those letters
- press space to tick in the box
- start again typing letter if you wish to allocate another tag
- press enter to confirm and quit
Additionnaly, a keyboard shortcut to birng you directly to the tag would be also logical...
V de Lab commented
This is a common way to allocate tags in many tools using them, very convenient when having a long list of tags...