How to visible fingers on biped simple rig

To add a model press the plus button on the top left

Biped Simple Rig It's Only For TF2 Models (I think)
To add a rig right click on the model then click rig
after that click rig_biped_simple (I forgot the name lol)

To Visible Fingers You Need to Open The model then Open rig arms and also open right arm.
To visible to fingers press the cursor button Right beside Right Fingers