Update:
It must have been a one-off when I had both dto and fp on the same screen I don’t believe they are made to co-exist at the same time on the screen.
What I just did was to put a flight plan together in the standby flight plan. Then you can choose dto to any wp including proc wps and if you want to change it back to fp then just click standby flight plan to activate.
I don’t engage approach until I’m lined up with the runway anywhere on final up to around 20nm.