Would be nice to have an arrow option in Lucidchart for process flows so you could create a bidirectional line with both a head and tail arrow.
Lucidchart double arrow (two way arrow)
Best answer by Monika G
Thom as you've probably noticed this thread is a bit old. :) To make a line double-arrowheaded simply select the line. Then on the top properties bar there are two drop-down menus for changing the line endings. One reads 'none' if the line is single-arrowheaded. Check out the highlighted drop-down menus in the screenshot below. Make sure both of them have the arrowhead ending that you desire and you'll have a double-arrowheaded line!

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