Can I make video camera image from host to be larger than 'regular' option?

I am new to teamViewer and having a problem when in a meeting.  I am on an iMac 27" 5k model and have downloaded the Mac os app.  

While i am in a meeting my video size of both the host and myself show up as very small windows.  I have the option for small and regular but regular is still pretty small.

Is there a way to increase the window video size of the host?  The shared screen of the host is reasonable size but would like to see their face bigger.  Can this be done?


Thank you.