It is always hard to know what you are looking at when you see it on a drawing.
The .0001 tolerance really should have been a tolerance as part of the dimension. If you don't know to change the detail config to show tolerances, people tend to just type it in.
The feature control block can be "attached" to the dimension through the GTOL dialog. But again, you have to know how to properly define the datums and the GTOL features in the model (or as drawing features) to attach them to the dimension.