Charge deposit amount + extra cost at the same time

I think I need the same feature and I can't find it.
I also need to charge 20% deposit for the room (apartment) costs and additional 250€ as a "security" payment for possible damages and 40€ cleaning costs.
I configured both as mandatory extras and set "Deposit includes extra cost" to yes while "Depositis percentage" is set to yes too.
What I get is 20% of deposit for all three things. What I need is 20% of room costs + 290€ extra costs. Any way of doing this?

Hi,

It is not yet possible to do that at this moment. The current deposit system is either 'fixed' or 'percentage' amount, while in your setup you want to mix them together.

We've moved your topic into our feature request forum as your requirement is different with the original requirement.

Regards,