I am new to blender in general but got half a dozen CAD-Systems in my toolbelt. While I am used to each system having it's own quirks Blenders idea is quite different from a classic cad-system used in engineering, leaving me kinda dumbstruck.
My problem is simple: Whenever I try to transform an object or extrude an edge or vertice, my extrude axis is locked to Z.
My Object has a modifier to mirror on the z-x plane (normal to y), and the selected vertices/edges can be all found on the z-y plane (normal to x). My scales are 1/1/1, I think it has something to do with me using shift to move the view during extruding. But I cannot find where I can see if an axe is locked or not, any help would be greatly appreciated. Snap is turned off.
I tried using mmb to switch the locked axis, I tried e + direction trying to enforce extruding direction, I tried shift + direction to lock and unlock different axis. I am kinda frustrated since these are basic commands anybody uses and I got no clue where they are even shown :(