I have a font file with oldstyle and lining figures in both tabular and proportional widths, which I created in FontLab.
I am now editing it in Glyphs and I notice that the tabular figures which were components of the default oldstyle proportional figs centered on a 500-unit width now seem to bear the widths of their proportional siblings. And when I try to give them a width of 500, it doesn’t seem to be possible.
Is Glyphs guessing from the name that these are supposed to remain the same and enforcing that? That would be useful in the case of a, á, à, ä etc., but obviously is problematic for figures intended to be on different setwidths.
If it matters, I have used my own suffix convention rather than Glyphs’s (e.g. /one, /one.lnum, /one.tnum, /one.lnum_tnum).
Also if it matters, I have oldstyle figures in the default (/one, /two, etc) slots. Side question: does that design decision prohibit me from taking advantage of Glyphs’s internal understanding of figures as determined by naming scheme?