To give a promotion to user experience, in my personal opinion, a particular button for screen shot is necessary, sometimes for hand draw, sometimes for trimming the edges.
Concern it 
hi - can you please elaborate. What do you mean under âScreenShot buttonâ ?
Hi, I am struggling with my poor description.
I mean it is a button has the same effect like you push the on/off and volume up button ,
and then it yerld a screen shot but not save it into the album,
you can edit it imediately with apple pencil , share it , delete it or save it into the album.
All I want to say is that may be the recently design is not the best.
Now we save the screenshot into album by tapping the centre button,
If I want to use the screenshot imediately, I have to (1)close the shapr3d,(2)open the album,(3)find the screenshot I need,(4)paint on it or trim if necesarry ,and then back to shapr3d for proceeding.
I need to do at leat 4 steps more.
oh I see - thanks. A markup tool with immediate dragânâdrop capabilities 
Ok, glad to hear.
From Xhz