Is there a way to set Indexing distance by way of keyin vs drawing a line?

The index distance, is function of the previous accudraw distance that was made.   So if I drew (or offset …) a line 52.5633 previously.   Next time I place a line, or offset etc, it remembers that 52.5633 distance, which is handy.   I would like to make a bunch of keyins with 5 different commonly used distances in my drawing.    Is there a way of doing that with a keyin?   Or is the only way to generate a Index locked distance is by actually drawing something first?  thanks

v8i select series 3

Microstation