Hello Martin Seidl

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Best regards

@Martin, Use that Custom CSS

.offcanvas-menu .offcanvas-inner ul.menu > li.menu-parent.menu-parent-open > a > .menu-toggler::after, .offcanvas-menu .offcanvas-inner ul.menu > li.menu-parent.menu-parent-open > .menu-separator > .menu-toggler::after {font-family: "Font Awesome 5 Free";}

yes, tip was added in Helix documenation.

Thnx both, but Paul I embedded the code and I see the arrows after clicking on submenu item but by just clicking on the canvas menu (one level higher) arrows are not displayed, they are quarters somehow.