I have struggled for days with this. At first I thought they were just not showing up, then I found them far from the airport where they were supposed to be. I fooled around with the scale of the map and finally got some static aircraft to show. Now, at a different airport, nothing I have done has made them show. From FS I would look down and navigate to the spot where I want to place one then right anywhere and bring up the 3d dialogue. Then I manually entered the coordinates. Sent it through the mill, went to FS, went to the scenery library and back---no static! I have beed using 2.6 build 135, upgraded today to 136.
I have noticed that anytime I select the "User APIs" and browse to the one I want, the right location shows up in the dialogue but it is greyed out. This has happeded everytime, both when I have placed statics and when I haven't been able to. ????? John