Text messages sent from user's number

Currently we can either send a text from the user or from PropertyMe Grow.

If sent from User the reply feeds to the User's phone.

If sent from PME Grow the reply feeds back into PME Grow.

BUT this means that the client is potentially receiving text messages from two different numbers (default PME Grow number and/or User's phone number). 

It would be great if messages could be sent from the User's number through Grow so that messages show up as User's phone number and replies feed into Grow.