re animation sliders
I'm assuming that your not refering to the MMB (middle mouse button) function on ANY channel in the channel box????? i.e. Dragging back and forth to change a parameter, etc...
a mix of the above technique plus what I think in Max is reffered to as "Wiring Parameters".
If so then,
Maya's name for the 'procedural setup' is called dynamic attributes.
The add attribute function is found under the Modify menu.
You could select an object and add a new attribute, then use the Set Driven Key function found under animation menu and wire the attribute to the SDK function.
Hope this helps
Mayan elder......only in years.....