Looking at the docs on ZBasic can be daunting.
There are several hundred different instructions.

The truth is useful programs can be written
using only a hand full of different instructions.

In a typical program 90% of all instructions  are
done by a half a dozen different popular instructions.

This has been true since I started programming in 1975.

I suspect if you took a class in programming they would not
tell you this and have you learn all 300. Deadly
boring :)

Only add to your repertory when you run into a difficult
problem.

Paul Lamar