I think you are reffering to the App and not the Routeplanner where this part of the Forum is for.

@BertM Sorry, I phrased this misleadingly, as I now realize. I meant: Have the website support the creation/manipulation of custom POIs (as described) plus have the MRA smartphone app support routes that have these accordingly in the way I also described.

I was quoting @peha

I understand what you mean, but implementing would not be easy.
If you make your own POI you can do that. ( but the zoomlevel will be limited in MRA as I also noticed)
Calculating between routepoints can be done in MRA.
As MRA is a turn by turn navigation program it is not the most suitable one for Rallies I think.

@Nick-Carthew I, too, would find it very helpful to have custom POIs be visible at every zoom level while navigating via MRA (the smartphone app). But what would elevate their usefulness even more, in my opinion, would be the possibility to add explanatory text and/or a picture rather than just a title. These metadata should show up once a custom POI is tapped, and there should be a bottom to "navigate to here". So, basically, a custom POI would GUI-wise behave a lot like a shaping point, yet would not be connected to/part of the route unless the user opts to actually go there. The use case I have in mind here is curating a collection of good restaurants close to a via point (say, the hotel) whilest planning, so that there are several options readily available when traveling - but choosing to ignore (some or all of) them doesn't interfere with the planned route.

I think you are reffering to the App and not the Routeplanner where this part of the Forum is for.
Garmin has the GPI format for this, it would mean you have to program something like that and implement it in the program. Looks like a lot of work and I believe no one has reversed enginered that format yet succesfully.

Right now, they disappear when you zoom out. There's no way to see all the POIs at once (and that is just a Texas Rally - in something like the IBR you'd want to see the entire nation's POIs at the same time).

Heart of Texas Rally

Currently your own POI files are visible at a 5 mile zoom range. So I do understand your request to see POIs and a lesser zoom level.