How do I select multiple items in the outliner or file browser without selecting all the items in between? When I try to append multiple files at once, or when I try to select multiple objects in the outliner window that aren't right on top of each other, every file or object between the ones I select are selected as well, and there is no way to un-select them and choose the files I want.
To combat this, I've been using the drag and drop feature when I can, and other times, I append or select the objects one by one or in the viewport. Sometimes, in the outliner, I can make collections invisible, but that doesn't work if I have multiple items in multiple collections. It's annoying because I've always been able to just select whatever I needed and get it done in every other version of blender except this one, and turning on an old laptop to work on some blender files lately in v2.69 reminded me of just how much many new minor changes in 2.81 have slowed down my workflow.
Is there any way to change this?
It seems like you are trying to Select the different Objects withShift+Click.
Try to use Ctrl+Click on the different Objects to select multiple Objects.