Dear Fellow Design Engineers,

I would like to ask you for an advice. I have designed a model of a frame which is controlled by Sketch1. I mean by changing the line lengths model will update automatically (as per picture below):

I'm not sure if this is the best ever approach and if anyone else is doing it but I find it cool and easy to adjust the size of the frame without playing with individual parts. However as you probably spotted, Side holes in the frame are fixed. I'm not sure how to control them.

Question/Task:

I would like to keep same pitch regardless the frame size and add or remove holes if necessary depending on the size of the frame.

Any Ideas? If you have better approach than having Sketch1 to control dimensions of the frame, you are more than welcome to share it