Where is the toggle for 'Limit Selection To Visible'? In Edit mode, in the Solid mode, I cannot seem to find the toggle for 'limit selection to visible'. Sometimes I just want to grab all the vertices I know are in an area quickly, to then scale then in the X, Y or Z quickly. Can I turn 'limit selection to visible' off? Do I need to go into XRAY mode to do this every time?
That is what Toggle X-ray does. Control if you can select through objects or not. It shows vertices that otherwise would not be visible, and allows you to select them.