Window action without having so select any record

Question

First and for reference, what I call a window action is an action on the top of a tree view.

Example below:

Problem: if I select no record, Odoo tells me that I have to select record.

Question: I would like the action to be called even if there is no record selected: Is that possible?

Example: the action for instance will start a popup wizard, if a selection of record is done this selection will be preloaded, if no record is selected I will process myself the data preloaded.

Answer 1

The following context in the window action will allow it to be triggered even if no record is selected:

context="{'sidebar_without_id':True}"

Answer 2

Instead of Action menu you can put your own button inside control panel (e.g. beside create,import button)