Multiple checkboxes checking at once

[Uneo]

Hi everyone.

I'm having a problem with a Visual Basic code.

I have 40 checkboxes on a picture inside a pictureBox that represents the subway of a city.
Basically, each checkbox represents a subway station.

The thing is, how do I check multiple of those checkboxes at once ?

The only way I can think of is by using Ifs included one after another and this can't work out properly for 40 checkboxes.

Do you have any idea of how to do it ?

Thanks in advance.