Allowing multiple assets collateral

Hi guys. I want to advice some implementation that I’m sure will help many of your users and potential users (including myself)

If I’m shorting some mAsset with UST, I need to leave a collateral of 200%.
Let’s say the price of mAsset is rising and my collateral becomes 175%.
Currently AFAIK I can add as additional collateral only the same asset I used when opened a short (in my example UST).

But it would be great if as the additional collateral the platform would allow me any mAsset.
So I can do both - receive potential gains from my crypto and protect the short from liquidation.
In the case of liquidation both collateral assets will be liquidated proportionally.

What are your thoughts?