Customisable Invoice Numbers

In order to make the switch from my existing accounting software (where I generate invoices) to MR and stay compliant with the tax authorities, I will need my invoices to follow the same numbering system and sequence as it does now.

For example, my most recent invoice has the reference I24010, so my next invoice will need to have the reference I24011, and so on. If there is a change or gap in my invoice numbering then the tax authorities (here in Spain at least) can flag it as suspicious. Currently it isn't possible to customise the invoice numbering/reference in MR (as you can in, say, Stripe), which is something of a dealbreaker for me.