And for Type 4 & 5 with CTRL seems we must make this! (THX Chri)
if ( arrowType.value == 4 || arrowType.value == 5 ) { f = moi.VectorMath.createPoint (c.x+dx, c.y+dy, c.z+dz ); fixedDist = round(R, 2); }

by

if ( arrowType.value == 4 || arrowType.value == 5 ) { f = moi.VectorMath.createPoint (c.x+dx, c.y+dy, c.z+dz ); fixedDist = round(R, decimals.value); }


Ps I don't know if all that work for Imperial ? Never used, too complex for me! :(