Line Spacing in Apple Pages

Hello, I have a question about line spacing in Apple Pages. It seems line spacing for a font on some Mac applications can be determined by the hhea table Asc, Desc and LineGap values. For my font, I require very tight line spacing which in MS Word on a mac will produce clipping of accents above and below characters. While Apple pages appears to follow hhea spacing for more conventionally vertically spaced fonts, when the spacing is very tight, Pages seems to give up and make its own calculation for spacing. Unfortunately I want the spacing for this tightly spaced font to be identical for MS Word and Apple Pages. Any ideas on how to achieve this? Thanks.
There's not a way as far as I am aware. Been screaming about this with the Helvetica Now typefaces for months
Line Spacing in Apple Pages
 
 
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