1.- Use "Window > Show Entities ..". Make sure to activate "SHOW LABELS" in the "highlighter" icon on top of MODEL INFO
2.- In the MODEL INFO you can click in the square icon on the left of any field to activate the "Hide All, Show All, ...etc..". But I suggest to use LAYERS, in my opinion this is the best method in FEMAP to arange your FE model, I left GROUPS for postprocessing only, not for model creation.
3.- I don't understand this point, please explain better.