I don’t know if this has been suggested before.
In invest accounts you can hold multiple currencies and can convert from one to the other. It would be nice to be able to put limit orders in so you could convert from GBP to USD if the exchange rate goes over 1.30.
It would also be useful to be able to set this as a reciprocal value. I think of the GBP/USD exchange rate as £ to $ not $ to £ and thus can immediately think of 1.30 but would take a moment to think of 0.76 as the reciprocal value. Thus if I am putting an order to convert $ to £ it would be nice to express this as the £:$ rate that I want to better (i.e 1.28 or better/lower) rather than 0.75