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6.2.3 Door→Event: E>ER

This command is used to find out which events are associated with the selected door. If the mouse selection is not over a door it displays ‘SELECT DOOR’ on the message line and sets the mouse cursor to UNAVAILABLE. As soon as a door is selected this command turns into a list input whose parameter i and second index run through the associated events (the first index is disabled). See List input.

ER>EVENT i <>

It displays the associated events on the message line as the user increments/decrements the second index. If the selected door isn’t associated with any events, I is replaced by the string ‘NONE’.