Pixel selection with layers : add subtract, intersect

[Tolgan 5]

Hi!
It's possible to select pixels with Ctrl+left Click on thumbnail layer.
It's also possible to add pixels with Ctrl+Shift+ left Click on another thumbnail layer.

Is there a way to subtract current selection with layer content (like Ctrl + Alt + left Click in photoshop) ?
And an other way to have intersection between current selection and layer content (like Ctrl + Alt  + Shift+ left Click in photoshop)?

 

[firstdefence 2,437]

You can save selections as spare channels and intersect and subtract from there.

1. Make a selection
2. Save selection as a spare channel
   
3. Make a second selection and do the same, you can now load selections and subtract and intersect them.

[Tolgan 5]

Great thanks firstdefence for the quick and detailed answer !
I didn't know this feature, which is perfect to store selections.