how to uncollapse multiple stuff in roblox studio

In Roblox Studio, you can usually expand or collapse multiple items in the Explorer by selecting a parent item and using the arrow keys: right arrow expands, left arrow collapses. For the whole tree, a common Explorer shortcut is Shift + click on the little arrow/caret, which expands or collapses all descendants at once.

Fast ways to uncollapse

• Right arrow : expands the selected item in Explorer.

• Shift + click the arrow/caret : expands or collapses the selected item and its descendants.

• Select the parent first : the shortcut only works when Explorer is focused and the item is selected.

If nothing happens

• Make sure the Explorer panel is focused before using the arrow keys.

• If you want to open many objects, try selecting the top-level model or folder first, then use the shortcut on that item.

• Some older forum posts mention that bulk collapse/expand behavior depended on newer Explorer features or updates.

Quick example

If you have a Model with lots of Parts inside it, click the Model in Explorer and press Right Arrow to open it. If you want everything under it opened at once, try Shift + click the small triangle next to it.

TL;DR: use Right Arrow for one selected item, and Shift + click the caret for multiple nested items or the whole branch.