First to create and run the software, create a new file by going to File> New ...

Programming in Pascal code, if you don't know Pascal programming, see this example to know in the section Sample in Pascal

When programming the Pascal file, compile the file into Compile> Compile (or press ALT + F9).  If successful, the following dialog box will appear.

When programming the Pascal file, to run the file, go to Run> Run (or press F9). If successful, the program will run.

NOTE: in the process of compiling or running the program, if there is an error (the compiler has an error that will not show the above dialog box), an error will be reported , see section Error in Pascal for details.