What is the different between Project and Edited?

What is the different between Project and Edited?
What does Make 1, Make 2,... and many other Make N means?

[fredvs]

What is the different between Project and Edited?

The Project regroup some units and has a main source file, for fpc the "program" or "library" unit.
That Project has his own options.

The Edited source is the active edited file in the editor.
Like Geany IDE does, you may compile only this unit (not all the project).

In the Commandor form, the Project panel (light green) controls the project himself and the Edited panel (light brown) controls the active edited source.

What does Make 1, Make 2,... and many other Make N means?

In Project-options, you have Make, Build, Make 0 to Make 9 different options to compile the project.

You may choose the make-option via menu Project / Make.
Or, in the Commandor form, use the pink list box in Project light-green panel to select the make-option.

The same if you want to compile only the active Edited source.