deselecting/selecting all player for specific flows in Setup mode

Hello,

Is it possible to deselect/select all player for specific flows in Setup mode?
Creating a new flow allocates all players to the new flow.
It would be great if all selected instruments could be unchecked by a single click.

Select all the players in the left panel then untick the relevant flow in the bottom panel.

Ah! thank you! You are the legend of Dorico!!