PACKS and PNEUMATIC_SYSTEM_EX1

Dear Asobo,

I am now starting to use the new PNEUMATIC System EX1 with MSFS 2024, I am developing an aircraft that has what you could consider only 1 pack (is a Compressor that takes hot air, and cools it down, sending it then to a heat exchanges, the MIXER) however this compressor unit, is not linked to an engine per say, is linked to a circuit which is linked to a shed bus only available when Engine 2 is running.

Reading the documentation:

Index Order Between Packs And Engines

When using packs, the system will assume there is an equal number of engines and packs and that they are indexed in the same order. Usually, the first engine (and so the first pack) will be the left one.

How can I achieve my desired goal to link the only Pack available to Engine 2 (Located on the Right side), instead of Engine 1? basically the compressor (Equivalent to a pack) will continue to run as long as the circuit is active, and it should be linked to Engine 2 only.. nothing to do with Engine 1.

Any advise what I should do?

Best,
Raul