The pants are likely built as "superconformers" - they should automatically assume the same morph values as the figure they're conformed to. Alas, superconforming breaks with injected morphs, in my experience.

The easiest way is using my copymorphs script, it'll copy all morph dial settings from David to the corresponding morphs in the pants.

www.svdlinden.nl/webposerstuff/downloads/copymorphs.zip

Usage: load David, set the morphs, load the pants, conform the pants to David, then run the script, with either David or the pants selected (doesn't matter what body part).

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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