Salem

First off I use Ender/Latikai clients. I was wondering if there was a command to split a stack one piece at a time. I know right clicking brings up the take menu, but that can be very tedious. I'm trying to easily split seeds into a single seed so I can fill a fish trap with 15 individual seeds.

No easy way to specifically split off 1 seed.
However, I don't know if you know that you can use your keyboard's numerical keys to choose which action from the radial menu you want to use.
So instead of rightclick - move mouse - click split - Enter, use rightclick - 1 - Enter. Much faster. If only the '1' and the 'Enter' weren't on opposite ends of the keyboard
Just take stacks of 15, and keep splitting them in half so you only need to enter a number in the field once, when making the 15 stack.

Well not the answer I was hoping for, but that should help some, so thank you ☺