Hi ... welcome! Hang Em High doesn't have an ICAO, so it is not a "listed" airport. But if you want to start at HangEmHigh and make a flight plan to Misty's Place, here is what you do:
First, "Place" yourself at the proper starting point. Use the "MAP" in your sim. (I have my keyboard mapped to "M" bringing up MAP instead of "Magneto". You will see that you can "place" yourself anywhere in the world with this feature. All you need is the Latitude and Longitude. Got to the Here2There page at RTMM. In the top index, you will see RTMM Starting Points. If you click on that, it takes you to the Starting Points table. (
HERE). Now go down to the "H" area and you will find several entries for HangEmHigh. Look at the one that says "Lower Lodge". (This is for a float plane). Copy the latitude and longitude you see there into the MAP latitude and longitude. You can also enter the "heading". Set Altitude at zero and Speed at Zero. When you are finished, click OK and you will be positioned right at HangEmHigh where you wanted to be.
Second, a flight Plan from HangEmHigh to Misty's Place. If you go to the Here2There page and go to RTMM Flight Plans, there is a full explanation there on how to select a plan. These are pre-made plans, so they may not go to where you want to go. You will notice there are "to" and "from" plans. If you download that zip file there, you will have hundreds of pre-made plans ready to use. Then you go to flight planner, and find the plan you want. If you want to go from HangEmHigh to Misty's Place, you select "#HangEmHigh to Misty's Place". If you want to start at Misty's Place and go to HangEmHigh, then you select "=HangEmHigh Resorts from Misty's Place". Read the instructions carefully on the FAQ page.
After a little practice, you'll find you can start anywhere in the RTMM world. The sim only recognizes "real" airports (those with ICAO codes) as a starting point for a plan. HangEmHigh isn't an airport, it is a "location" (no ICAO code), so you must use the "map" to get yourself positioned, then you can fly the flight plan.
Thank you for asking about this ... this is a great opportunity for us to explain how this works, maybe more clearly. A fine question. (And we don't worry about language problems here ... we allow posts in your native language ... we all have Google Translate or same, so we can figure out what you are saying). Also, the way you did the pictures was excellent ... as soon as I saw the red circle, I spotted the problem. Well done, and again. Welcome aboard.
Doug
(I was typing while you and Steve were conversing, so what I said here may be redundant)