Yes, it supports OOB as well as custom entities.
It works on tablets and mobile of both iOS and Android OS.
BPF is by default enabled on Kanban Board. To select a BPF you can choose it from the drop down on the Kanban Board.
Yes, by adding the logical name of that entity in Activity Section while configuring the Kanban Board.
User should have a security role "System Administrator" or "Kanban Board User" to see Kanban Board.
Kanban Board works on Online for UCI.
For this, you need to delete the Inogic License Details record from your sandbox environment. After deleting, the next step would be to activate the license.
To delete the Kanban Board license follow the steps given below:
Navigate to Advanced Find.
Select Inogic License Details in ‘Look for’ --> Click on Results button.
Select the Kanban Board record and delete it.