XS_POP_MARK_SYMBOL
Category in Advanced options dialog: Drawing properties
Use this advanced option to define the
customized pop-mark symbol to be used for pop-marks in drawings. The default is
xsteel@0, which means that you are using symbol number 0 in the symbol file xsteel.
This advanced option is model specific and the setting is saved in the options database. Reopen the model to activate the new value.