Once Touchscreen Mode is enabled, you can't put items inside a bundle.

Steps to Reproduce

1. Enable Touchscreen Mode: Options… » Controls… » Mouse Settings… » Touchscreen Mode: ON
2. Get a bundle and try to add items to it.

Observed Behaviour

Whatever I tried, I was not successful adding any item to the bundle.

Expected Behaviour

There should be an option to add items to a bundle when using Touchscreen Mode.