Thanks for your interest. All the commands are detailed in the Readme. Use the Show Readme command in Tray Menu. If you have a program that can display TreePad type files, such as TreePadLite, that's registered for .hjt file type, press F1 when the Folder Cache window is open. If it's not registered, use Choose Help Reader command in Tray Menu.
I didn't use the compiled TreePad reader program because a small help file becomes over a MB with the reader compiled in. It's very slow of the HD. It's better to either use the Readme file, or install TreePadLite or one of the more advanced TreePad apps. TreePadLite is free and opens very quickly.
I've kind of gotten away from updating the changes page because this program has a Check For Updates command. If a newer version is on the site for download, it will prompt to fetch it.
If you use a ToolBar near the TaskBar such as RocketDock or another you may also want to take a look at MaxaMiser. Alt Up Arrow "MaxaMises" the active window while leaving a gap next to the TaskBar to avoid covering your toolbar. The gap is adjustable via .ini file.
Eventually I'll add the adjustable gap to FolderCache. One step at a time though.
Currently FolderCache Side By Side Button is hard wired to leave a gap that's 5% of the screen width or height depending on the location of the TaskBar. Also is TaskBar is set to AutoHide I believe the API for the screen work area gives the screen resolution as the work area. To get a gap TaskBar AutoHide must be disabled.