HP Prime and directories

[pinkman]

I confirm there are no directories, and using custom Apps is a solution, but you can also create different programs, each of them exporting its own set of vars. You can then refer to them by prefixing the name of the var with the name of the program file, ie:
MECHANICS.LEN
SPEEDS.LEN

Beware of the reset of the variable values when you edit the code. To avoid vars being reset to 0, use AVars (you’ll find documentation here).