new ForestPack toolbox version:
added Geometry List naming utility.
You can batch remove first (->) or last (<-) characters from the items name:
You can batch edit names using %% with numbering:
P.S. script automatically renames names in FP rollout. So after each rename rollout must be refreshed.
If there are many items You can speed up process by deselecting ForestPack or going out of Modify menu.
If wanted You can rename scene objects to reflect the changes You did in FP names.