Hi Saida,
After some further investigation, I've narrowed down a potential cause (bug) of my issue.
In one model, where I have BOTH data manager packages and excel input forms stored under a team folder, I can see the team folder in RSA1 transport connection.
In another model, where I have ONLY data manager packages (and no excel input forms) stored under a team folder, I cannot see the team folder in RSA1 transport connection.
To test this theory, I added a new excel input form into the team folder of the model which had no input forms previously, and bingo! I can now see the team folder in RSA1 transport connection.
I think it's time to raise an incident with SAP.
Cheers,
Carlton.