enabling MMS on MacBook Pro

Usually a matter of settings, of course..

Some ideas & details may/not help; see:

• How to forward SMS/MMS text messages from your iPhone to your iPad, iPod touch or Mac - Apple Support

//support.apple.com/en-us/HT208386

• Use Continuity to connect your Mac, iPhone, iPad, iPod touch, and Apple Watch - Apple Support

//support.apple.com/en-us/HT204681

Details to check; behind what should, does, or does not work:

System requirements for Continuity on Mac, iPhone, iPad, iPod touch, and Apple Watch - Apple Support

If the idea works across some, but not all you need:

• Use Handoff to continue tasks on your other devices - Apple Support

• Use Messages in iCloud - Apple Support

//support.apple.com/en-us/HT208532

[This may add extra or use/fees to increase viability of iCloud services.]

on your Mac, you need to launch Messages and set it up using its Preferences:

Messages > preferences > iMessage

Your logged in Apple-ID should be shown, click:

[√] Enable this account.

you can add your iPhone phone number and other accounts if you wish.