How do I drop markers on the fly?

How can I drop markers on the fly while playing back? On a SSL console it was a breeze, I would think it would be on Cubase Pro 10.5.
Thanks

I believe the default Key Command is the Insert key (although there is a 7% chance I changed it to that at sometime). Look at the Key Commands to verify.

Yes, it is Insert key. It’s a default key.

Thanks for the answers.