Hello to everybody

I'm new to VBA and Im trying to make a little userform project.
So the problem is: I have a userform (frmEXAMS) with multiple checkboxes, more than 50 where user's can select multiple exams to perform
User can check multiple checkboxes at once
Depending on the selection of a laboratory (10 checkbox in another userform - frmMAIN) I need to make a list in another sheet (a specified sheet for the lab selected in frmMAIN with their logo, etc., named LAB1 to LAB 10) populating a maximum of 27 rows and the number of columns necessary to list all the exams that were selected in frmEXAMS.

I hope you understand my need
All of your precious help will be accepted

Thank's in advance
Mike