CubeGrid Tool — Shift+Click to complete a block selection across two cells removed in 5.8

General Issues and Bug Reporting (Unreal Engine)
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Summary

In the modeling mode, and then cube grid tool, Shift+Click to complete a block selection across two cells is removed in 5.8.

Now you have to drag to create a rectangle. Makes it a lot harder to prototype levels,as you now have to get the camera into a posistion where it can see it cell A & B.

Previously you could select cell A, then move the camera and then shift+click on cell B and you would get the rectangle. Takes lot less time to do, and made it so I would do less mistakes using it.

What Type of Bug are you experiencing?

Level Design & Art Tools

Steps to Reproduce

Open modeling mode in editor, then select cube grid tool, select a cell, then shift+click on another cell on same z level.

Expected Result

In previous versions, click on cell A then shift+click on cell B would fill a rectangle between the cells.

Observed Result

Now it just selects the object your mouse is at. No cell selection.

Affects Versions

5.8

Platform(s)

Windows

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Seconded this, and others have similar issues in the Unreal Source Discord. I notice a lot of suspicious commits in InteractiveToolsFramework/InputRouter.cpp which seem related to this bug, and my humble efforts of debugging point to the culprit being some modification done there for 5.8.

I hope this gets fixed, since it render CubeGrid practically unusable compared to my previous workflow.

1 Like
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@Not_Mhalden if you vote for your post this will be escalated to a JIRA ticket. :wink:

6

Just bumping this (and have added vote) as this is making a very useful tool difficult to use at present.

Thanks!

1 Like
7

Another bug I’m experiencing with the cubegrid tool is the CTRL+drag is not working anymore.
Are you having the same issue?

3 Likes
12

None of the keyboard shortcuts work with the viewport focused. Console command ViewportInteractions.EnableITFInteractions 0 makes them work again.

1 Like
13

I figured how to fix these issues, i simply switched back to the “Legacy” Gizmo in the editor preferences. i hope this will help you guys.

Screenshot 2026-08-15 143909

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Setting `ViewportInteractions.EnableITFInteractions 0`is ok with the CubeGrid, but it is better to set it back to 1 after that since features like `Gizmo + Alt drag to duplicate` will no longer work.

Or you can use my plugin to fix Cubegrid ONLY. Ctrl Drag/Shift Select/Z work well.

Edit: 20260815 - UE5.8.1

Plugins.zip (15.1 MB)

15

Thanks for the votes to get this escalated to a JIRA ticket. I checked on it this morning, and it looks like a fix is coming in our next release. Once the fix is reviewed and approved, the bug reporter’s status will be updated.

2 Likes
16

Shift + click is now working in 5.8.2 but not the Z corner mode shortcut. :face_with_medical_mask:

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UE-386332 is ‘Closed’ as ‘Fixed’. The issue will be addressed in 5.8.2.

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This issue is based on the ‘Shift Click’ problem, which they did fix in 5.8.2. But the hotkey issues in Cubegrid and other viewport tools still persist. for example, corner mode (Z) in cubegrid, Ctrl+MMB to switch the 3D view. I guess somebody needs to open another issue request.