Steve,
The first gen (82-94?) S10's did in fact come with tilt and set up for a floor shift manual transmission. When searching through sources like car-part.com these columns are often referred to as "tilt/floor shift" columns. To my knowledge the first gen S10's were not available with a floor shifted automatic transmission so any floor shift column should include the key release.
I have a floor shift/tilt column from a first gen S10. I intend to use parts from it and the column from my car to build a column which has tilt, the key release and the multi-function switch (wipers, turn signals, cruise, etc.). A few members on here have built columns similarly, like Eric (Clutch).