Add, Remove, and Hide Auxiliary Lines

Add / Remove Auxiliary Line (Red Line)

Hover the mouse over the position where you need to add auxiliary lines.

add remove auxiliary line add

Hover the mouse over the auxiliary line near the ruler where you will see " x ", click it to delete.

add remove auxiliary line delete

Hide Auxiliary Lines

The auxiliary line can be hidden with the ruler, you need to turn off the "Ruler" in "More" - "Preferences" in the upper right corner of the editing area.

hide auxiliary lines