It's another type of custom ctrl I guess, but Blender uses ctrls that look something like this
< 45.3 >
Clicking on the arrow heads changes the value by a set amount.
Clicking on the control but not on the arrowhead or number and then dragging the mouse across the screen changes the number proportional to the mouse movement, as if you'd grabbed a large imaginary invisible slider/scrollbar type control.
Clicking on the number itself goes into text entry mode, with the number selected so the first character typed replaces it.
So, manual entry precision, quick large adjustments, and one click small adjustments in one compact widget.
Adobe Premiere (video editing) uses something similar, maybe other Adobe products also, I don't use them.
Cheers -Terry