Build Modifier:Build Strokes from both endpoints & a proposed solution

my request is to be able to Build Strokes from both end points of as stroke as option, for more style effect

technically if it's possible,

1. by calculating a temporary middle point of a stroke using the lenght of the stroke .(adapting or sampling approach as inspiration).
2. or find the middle point of in the stroke,eg: 11 point in a stroke so the middle point is the 6th so build from endpoints to the 6th point and reach the middle point simultaneously.

in addition to that , this option may help to build a converted text object to grease pencil Correctly and considering a situation where there is two or more embeded closed strokes( fill + holdout ) like : O, e D and B letters as Gpencil we must build those two stroke simultaneously ''like concurent option''