There are 2 challenges to this: making the beam accelerate from 2 to 3 strokes, and beaming it together with the 8th note. I know that (sadly) standard features won’t allow for this, but are there any workarounds that would let me recreate this?
In what follows, I am assuming that the quintuplet has the duration of an eighth note. If the quintuplet is supposed to have the duration of a quarter note, then double the second number in the tuplets below.
Start by entering the notes in the first two measures in different voices. The first measure uses a 5:1e tuplet and the second measure uses a 5:2x tuplet. With chord mode on, combine the first two measures to obtain the third measure. Select just the notes without the tuplets and set their voice column index to zero, remove the eighth rest and hide one of the tuplets to obtain the fourth measure:
Start by creating a new notehead set containing a single notehead which looks like a 32nd rest and change the attachment point for Stem up SE to (0.85,2.50):
Enter the notes and forced rest shown in the first measure below. The outer tuplet is 10:8y and the inner tuplet is 20:5y. Beam the notes together, make the beam flat and raise it by 3/4 of a space to obtain the second measure. Now enter the notes in the third measure in another voice using a 5:4y tuplet. Select the notes in the third measure without the tuplet, set the Accidental property to Hide and the Voice column index property to zero, make the fanned beam flat and raise it one space to obtain the fourth measure. Combine the second and fourth measures to obtain the fifth measure. Select the superimposed notes at the end of the fanned beam in the fifth measure, suppress their playback and change their noteheads to use the new notehead set, remove the eighth rest and hide the inner tuplets to obtain the sixth measure: