I created a dab brush in corel painter and found it worked in a similar way to those dab brushes at Photoshop.. I use the brush to block in an area when under painting at a selected size or colour etc.
It also will paint at a small size for leaf dabs or what have you.
It appears I can not upload at Wet Canvas but if you would like to try, drop me a pm with an email address and I will respond
Over 50%of the river Thames painting put up to day was most probably done with this dab brush. It was used to dab shape and outline and tone of trees and bridge and greenery.
If you are concerned about download from my computer it was created from a utube tutorial, “ creating a dab brush in Corel painter” and then seeing conceptual painting tutorials.