PhotoLine has so many functions, but I don't know how to use them.
The first way to get information about a function is to read the description in the status bar when the mouse is above the function. If this is not enough, press the Help key (on Windows: F1) and get the online help.
You should also try to read the Tutorial of PhotoLine. You can find it at
www.pl32.com
It shows many basic functions of PhotoLine.