Adding music symbols to staff text

This recent Dorico “Tip” shows how to add music symbols to staff text: Tip: Add music symbols to text objects – Dorico
. . . but I suspect that this is new to Dorico 4.

I’m stuck with Dorico 3.5 (Windows 7), in which this feature doesn’t seem to exist. Is there a relatively easy way of doing this in Dorico 3.5?

What I’m after is the ability to use the same font that Dorico uses for its time signatures in order to create some ‘fake’ time signatures – in situations like this (done in Finale):

Thanks, in advance, for any suggestions.

MusGlyphs

Thanks, Derrek!