If you are using Perforce as CVS, this plugin can be useful for you. It provides basic functionality for check-in/out files and exposes it with a help of dedicated command, available as in menu as in toolbar.
In addition, you get Perforce output in separated window, where you can see results of Perforce commands, or can get information about file statistics.
Available commands are:
You can install plugin directly from HippoEDIT Plugins options page (Tools→Options→Plugins), if you have Online Repository activated or by download plugin bundle directly from this page and open it with HippoEDIT.
For details about integration, you can ask on forum.
#plugin