They coordinates you should use is those that are in the bottom right corner when you fly around making the actual map with the menus.
If you have a map that's 5000 x 5000 in size, and 100 in height. It's the area you can run around on.
If you image a flat square in your head, 0 x 0 is one corner, 5000 x 5000 is one, 0 x 5000 is one, and 5000 x 0 is the 4th.
As long as you stay above 0 and under 5000 you will end up within the map. If you have a boundary set up aswell on around 20, it means that the map will be cropped around 20 coordinates on the edges not letting the char run any further.
If you fly around and look towards the ground you can see how the coordinates in the right corner changes, and you are able to write these into the gate/portal field field.
First one is is amount you go on the x axis, the middle one is the amount up and down(y axis). The right one is z which is top to bottom. There's also a 4th one that's used for the yaw, as in where the character will look when they arrive.
Just place the free camera as you'd want to spawn in the map maker, then look in the right corner and mirror the numbers there to the gate. Just keep in mind that you aim the camera down towards the ground in the game, cause the height is determined by where you aim the cursor on the height map.
Hope this explained enough cause I felt in a writing moodz lul.
