if the font has them then all you have to do is..Menu/Insert/Special and the font's glyphs that are mapped in Unicode show up and you click on them. On the Mac it might be the same...

If the font doesn't have them or they are not in unicode you probably won't see them.

Maybe use the MS Keyboard Creator 'MSKC' to make a custom keyboard mapping number keys to the PUA positions of the OSN's - but I think there will be other problems like auto numbering of lists etc.,

Si

The font has them, but since the oldstyle numerals are in the private use area (for some reason - I can't understand why there isn't a regular unicode number for them...), they don't show up in the Insert/Special window. I can copy and insert them from the Fontmapper facility, but it is a bit cumbersome to do that every time I need a numeral...
I'll try the MSKC thing - I don't use auto numbering anyway. :-)