first of all, thank you very much for your magnificent software, I'm working with the Beta for Windows now some days and it's very fun to do so.
Nontheless I have a question regarding the Marquee pixel selection tools (e.g. elliptical marquee and rectangular marquee tool) and their modifier keys.
I have consulted the help and found there are only two modifier keys, one which constrains the proportions (Shift) and on modifier key the removes ares from the current selection (Alt) and the possibility to drag with both left and right mouse button down) to add to a selection.
I would ask if it is possible to add some more (from my personal experience) very useful modifier keys which would make it way easier to select circular shapes.
A modifier key to draw the marquees from the center point rather than from the egde where the click at the begin occurred, for example holding the (Strg) key or another suitable one down
Another modifier key I find very useful is, e.g. holding the (spacebar) key down to move the selection on the fly while it is still being drawn holding the mouse key down
These are just some things I find really useful that make with selection these tools much easier to work with, I'm quite accustomed to such key modifiers as they are available in Photoshop CC.
Thank you again and a wonderful week ahead.
Kindest regards from Germany,
Robert Christian Strasser