A simple arrows editor is available in EdAdmin4 (Editorial Configuration > Typographies > Ends tab).

<end id="1" name="Arrow triangle left" hotspot="2500,2500" a="20" b="0" xmlns="">

  <polygon>0,2500,5000,0,5000,5000</polygon>

</end>

<end id="5" name="Arrow simple left" hotspot="2500,2500" a="20" b="0" xmlns="">

  <polygon>0,2500,5000,0,5000,1250,2500,2500,5000,3750,5000,5000</polygon>

</end>

<end id="7" name="Arrow wide left" hotspot="2500,5000" a="20" b="0" xmlns="">

  <polygon>0,5000,5000,0,2500,5000,5000,10000</polygon>

</end>

<end id="2" name="Arrow triangle right" hotspot="2500,2500" a="20" b="0" xmlns="">

  <polygon>0,0,5000,2500,0,5000</polygon>

</end>

<end id="6" name="Arrow simple right" hotspot="2500,2500" a="20" b="0" xmlns="">

  <polygon>0,0,5000,2500,0,5000,0,3750,2500,2500,0,1250</polygon>

</end>

<end id="8" name="Arrow wide right" hotspot="2500,5000" a="10" b="0" xmlns="">

  <polygon>0,0,5000,5000,0,10000,2500,5000</polygon>

</end>

<end id="3" name="Square" hotspot="2500,2500" a="20" b="0" xmlns="">

  <polygon>0,0,5000,0,5000,5000,0,5000</polygon>

</end>

<end id="4" name="Circle" xmlns="">

  <ellipse>0,0,2500,2500</ellipse>

</end>

See also

Format of XML file