When we select a ladder type registered in our program, when we click the Set support conditions command, it does not allow to detect support locations. Only the close command is active. What should we do to determine the support conditions?
I asked what we should do when the support determination lines are not active. As a result of my experiments, I saw that it is possible to mark the support places with the mouse when the lines are not active. Close command misled me, Greetings
German 
French 
Spanish 
Portuguese 
Italian 
Arabic 
Russian 
Japanese 
Turkish