How to add non-ToolboxItem controls?

[Ceynou]

How did you add the MaterialContextMenuStrip to the Form17 since it's not in the Toolbox, manually?

I'm a beginner developer and particularly on Winforms, I just can't wrap my head around how you did all those things.

[Taiizor]

Did you end the discussion because you figured out how it’s done?

[Ceynou]

Yes, thank you!