I want to have m.domain1.com and tab.domain1.com for domain1.com to have mobile and tablet versions so domain1.com is master and m.domain1.com and tab.domain1.com are slaves. can I do that?

Can we do this with mighhtysites

Main site is sub1.domain1.com ( Sub Domain)

Slave site 1 : domain2.com ( parked domain) -- duplicate site with different template
Slave site 2 : sub2.domain2.com ( parked domain) -- -- duplicate site with different template

All are in same cpanel
domain1.com is ...