Hi!
I have suggestions:
Is it possible to add a “drawing” column type via draw.io to, for example, add a signature?
And I want to use plugin in one page with « external » link, example: use only kanban view
And add PWA into form for using with a smartphone in one page
(So sorry for my English 
)
Thanks! 
In the second half of this year, there will be a feature called “General external apps”, where you can define your own applications with Kanban view/Table view, and so on. And you can also design a workflow like signature.
Do it like thousands of other people who have used SeaTable to develop powerful processes and get their ideas and tasks done more efficiently.