plug-in panel broken?? where can I find available plug-in list?

hello,

i´m a pretty new user to FEFLOW and I just have a big problem with my FEFLOW Software, because the plug-in panel doesn´t show the "available plug-ins"-list. It just shows the attached plug-ins , which is of course not filled with any plug-ins, because i can´t choose any.
Does anyone knows that problem and can help me solve it? I really need to check my mesh properties and also need another plug-in for the residual storage.

You can collapse and expand both the "Available plug-ins" and the "Attached plug-ins" parts of the panel. If you only see one of them, the other part is collapsed. To expand the "Available plug-ins" section again, move the mouse cursor close to the lower end of the panel, click and then drag the section open by moving upwards.