Hi KAE
There are different ways to enter a symbol. In the attached pic 1 is symbol point you can click and enter a point an dthe symbol is placed there, 2 the symbol requires the right opening width to insert the symbol. if your door is bigger than your opening the symbol will not be placed, when you click the symbol and insert symbol the bar activates at the top and tells you the width required to enter the symbol.
Or you can enter a symbol point and then move the symbol, and or scale as needed.
Regards
Jason
Regards
Jason