can you use a team helix without er on a sled with er? any adjustments needed like aligment? what about changing to a button style?

You can use a team helix without a ER cut or you can also use a button clutch. The problem is you will not be able to use your ER.

Alignment is the same with the team clutch regardless whether or not you are using ER helix.
If you swap to button sec. clutch, you will probably have to change the washers to get the correct offset.