I advise you to become a bit more self reliant. for example:
Typing in “IMS” in some random search enginge finds things like the “Inddianapolis Motor Speedway” and “Insureance Management Services”, but if you combine it with “PCB” then it’s pretty much spot on.
How the plot window works is also pretty much explained in the KiCad manual.
PCB Editor | 9.0 | English | Documentation | KiCad
How to use the PCB Editor to design PCBs