While defining my own airfields in Custom Data Creator (PC version) there are useful text data available as "Remarks", "Caution", "Landing fee", "Operator". 
These data were displayed as Airfield Information in both: PC and Android version. That's a pity, that this functionality in present SkyDemon version disappeared. The text information about custom data airfields is not shown any more... Much work to collect data about airfields is wasted... :-(
Any idea how to show these data on the map in either planning or fly mode?

None of those fields have been used for some time; they are there in case we need to make use of them in the future. This depends upon our own data team and what we agree internally are the data to be represented across the whole of SkyDemon's coverage.

I have tried using the custom data app. I have been successful creating an additional prohibited area but when closing out and going back to the map it does not appear? If I do a search for the designation it appears briefly on the map and them fades away?? any answers
second poin‌t is that clicking on the "maps" " roads " button only once did its job. since then no roads or rivers when activated wit button press???

It's hard to answer either question without knowing more information. I would guess that your airspace is falling outside of the map display parameters, perhaps because of its vertical limits.