How to control CENTERMARK variables

[devitg]

Once upon a time, I learn about how to control CENTERMARK , but I can not remember how 

I think it is a way to size centermark relative to the diameter to center , some like PDSIZE , to be in absolute units or to be in relative to screen.

Please refresh my old and tired brain. 

[cadffm]

Help yourself

Start command Centermark,

press the magic key ([F1]),

Related commands and sysvars

linked under the "Related Reference" .

Not for centermarks only and the documentation is free,

use it 🙂

[cadffm]

Oh, didn't realized who asked here, glad to help with centercrosssize