How do I change distance between staves in grand staff?

Is this feature of Hold down the Shift key and drag with the mouse no longer available in the current version? Because I perform the procedure and nothing happens! What must I be doing wrong?

Thank you very much!

Oah, what an addictive answer! Thanks Shoichi:)

The better solution is to add a single arpeggio to the top staff, then use Shift+down to extend it to the bottom. This does the right thing and continues to work even if the distance between staves changes for whatever reason in the future.

The reason dragging didn't work is that MuseScore assumes elements on one staff shouldn't collide with another staff - normally a good thing to prevent. but here, you want the collision, so you also could have simply turned off autoplace by pressing "=" or using the Inspector. But, any such adjustment you make this way will be wrong if the distance between staves does change for any reason in the future. The Shift+Down method is the way to go.

That score doesn't have any grand stave. So whatever has been discussed above won't apply here.

Try with a slighly smaller scaling, check the attached (1.3mm -> 1.25mm)

The main source of difference in spacing is the dynamics - they require more space, simply as that. Your page doesn't have enough room, so you'll need bigger paper or smaller staves. Attempting to force the spacing the same without making those changes will just result in collisions - dynamics below one staff overlapping notes on the staff below (or indeed, possibly the staff itself.

Once you make the page big enough or music small enough or the second page to fit, the first page may space itself out accordingly as well - if you go to Format / Style / Page and re-enable vertical justification of staves. That's a new feature of 3.6 that's pretty crucial to leave enables on scores like this, in fact that is its whole point - to make the pages more even.

Also, I note the fact that for some reason you have flipped some dynamic markings above the staff, and this creates potentially collisions with the staff above, thus requiring more space than it should. You've also flipped some stems into unorthodox positions that cause them to extend further above.below the staff than they should when following normal rules of notation. Or maybe this came from MusicXML import and the importing program had specified these stem directions and MuseScore is simply honoring them? Anyhow, simple fix - Ctrl+A to select all, then Ctrl+R to reset those adjustments. Instantly the second page fits much better. But, you'll still want to consider some additional manual adjustment to avoid the need for so much extra space in cases like where there are dynamics below low tuba notes. And probably also reduce staff size a bit as well, especially since chances are other pages will require more room still.

That sounds like how it might work in some other program - Finale perhaps?