like say i want to move a building around or a big part of my map around and none of them are prefabs is there a way to highlight them all quickly so i can move them all together? Ive been unable to find a way to do this since im so new with the mod tools, Thanks a lot

You can create a brush around the items you want to select, then go to the top bar where its file/edit/etc... go to selection and look down to "select".  There is two options you're looking for either "select touching", or "select inside".  Once you select either touching, or inside, the brush disappears, and the items inside/touching are selected.

You can group brushes. Press B to go to the Entity Browser, go to Func and drag "Group" to the 3D window while your brushes are selected. You can select the entire group with Alt SHIFT Left Click. You should right click on Group and favorite it  though so all you have to do is right click on the 3D camera and select "func_group" at the bottom whenever you need it.

You can group brushes. Press B to go to the Entity Browser, go to Func and drag "Group" to the 3D window while your brushes are selected. You can select the entire group with Alt SHIFT Left Click. You should right click on Group and favorite it  though so all you have to do is right click on the 3D camera and select "func_group" at the bottom whenever you need it.

You could also just make them a prefab - like it depends on what you're trying to do.  Like I make my lights prefabs as rather then creating a new one every single time I just place a prefab, then you can enter the prefab with no issues, and edit the items you want.

Those groups work too, but really depends on what you're trying to do.

just go to entity list, find them in the list, selected hilighted.