Hi simon, they should only snap shut if there is not enough vertical space for them to be open without a scroll bar appearing.

It's designed to have them collapse instead because it's better to have their header available to see and be targetable with a click without any scrolling. With scrolling you'll have some things not visible at all until you scroll.

Although I don't recommend it, if you would prefer to scroll instead you can set that up by modifying the file SidePaneTabs.js, find the function:

function CompactPaletteHeaders( HeaderToIgnore )

and add a return as the first thing inside it so it looks like this:

function CompactPaletteHeaders( HeaderToIgnore )
{
     return;

That should effectively disable the palette compacting but you'll have a worse problem with scrolling needed instead.

- Michael