ZBrushCentral

Please Help!!! Masking problem in Z4!!!!!

Ok this is driving me nuts. Everytime I try to mask out any alpha I can’t!!
What I notice was every time I hold down the control key to draw out a mask
the alpha turns off WHY!!!? I can’t figure out why it’s doing this HELP!!!

Keep the Ctrl key held down while selecting the alpha to use one while masking

Thanks Richard it worked I can stop pulling my hair out now lol.