How to create a perforation on a curved surface

Dear team,
please help me in understanding how to create a perforation of say 2x8 (of any convenient radius) using rect. pattern command on a curved surface (cylinder).

Dear Team!

Am I expecting a reply here?
I’m waiting for a video or commentary from your side helping me to understand about the concern.

Dear Learnvern team!
I’m still waiting for your reply.

Dear Learner,

Welcome to LearnVern! We are happy to serve you.

With help of Sheet Metal Design you can perform this action

Step 1 simply create a cylinder
Step2 unfold the cylinder and
Step 3 use cutout feature as taught by trainer in this video
Step 4 you can simply fold the cylinder back

Check these videos for ref.

We hope our reply serves your query well.

Keep learning.

Thanks and Regards,
Team LearnVern.

Thanks for your response!