Is it possible to change collateral currency for mirrorv2 borrow

Hi,

I wanted to farm a delta neutral positon but for the short farm I used UST instead of AUST.
Is there a method on the smart contracts to switch collateral or I have to close the possiton and pay 1.5% fee and recreate it again.

Thanks in advance.

Unfortunately, I think you will have to close your position.

Thanks for the input.
Are you deeply familiar with the ecosystem?