question about macros and studio compatibility

[amoretam]

Hello people,
I use PT9 non HD and I am going to start creating my own macros and stuff...
I also work in other studios with PT HD 8, 9 and 10 so I want to be able to take my macros and all of my custom configurations with me to be able to use it on those studios..

Is this something that can be done with no compatibility problems?

Also, one of the custom shortcuts I want to create (maybe with quickey, I haven't decided) is one for: "select tracks in group", "solo tracks in group", etc... would this be possible?

And a couple of side questions: could anyone show me how to assign 2 Id letters or 3 to a group?

How is the banks in the grouping used? I can see that there are 4 banks of alphabet letters, but how can I use it effectively ?

Thanks a lot people that s alll!