Modify worksheet whith userform displayed

Hello,

I have some userforms that I use for instructions/explanations for working with a set of worksheets. Right now when the user clicks the button to show the userform they cannot move around in the worksheet. Is it possible to 'unlock' the worksheet when a userform is displayed?

v/r

that was easy

userform.show 0

now, for added difficulty I would like to lock the user into that specific worksheet until they close the userform. Would I just have to hide the other worksheets for until they close the userform?