finger curls

for the finger curls this is done through attribute and set driven keys so first off create a controller symbolising  which finger it will control in my case ive used letters to indicate the allocated finger it controls

once the controls are made you need to create an attribute for them to do this, select the control go to modify > add attribute >  and name the attribute keep the number as float and set the minmum value as -1, the max value at 10 and the default value at 0

next up comes the tricky part creating the restrictions of the values through set driven keys so you go to animate > set driven key and a menu will appear 

this is the menu now even though this menu doesn't say it you should select the control and then the attribute you created as the driver and the the correspondent finger as the driven, so first you want to set the default value so you key everything and the value of 0 will stay at the default value then you set the attribute to -1 and then select the finger to rotate up a bit on whatever axis your fingers rotate nicely on and then key that once thats done you need to set the value to 10 and curl the fingers round to however far you want them to curl