Hey 
I may have a suggestion for improvement, or someone has a better idea. 

When I start a new task, I often have to look for lable or other settings🕵️♂️. It would speed things up a bit if there was a syntax in the “Add a new task” box, example:
Task to do [l"Strong][dd"23.05.22][ds"10.02.22][%"20]
or
Task to do $l:Strong$dd:23.05.22$ds:10.02.22$%:20
You can already add a new label when creating a task by adding a task with ~ in the title. For example, if you’d create a task “Task to do ~label” it would create the task and add the label with the title “label” to it.
I plan on adding something similar for the other task attributes.
Is that reproducible on try?
I found the problem
it not work with the blue “Add/Save” Button (with open Edit)
my try
Works for me:
Could you provide clear steps to reproduce? (A list of everything you did, what you entered, what button you clicked on etc.)
I’d say it works as expected - the label parsing only happens when creating, not when editing. To add a label when editing you’ll need to use the labels dropdown.
ok then it was my problem sorry 

works when adding task in List mode, but not working when adding in Kanban mode
Yeah that is correct. I plan to unify and refactor this a bit more so that these intents get parsed everywhere (and also to add the same thing for assignees and such)