for example when i claim the security room. All other units on the screen of the same type will be selected. You can also select multiple units of the same type by double-clicking on a unit. In addition to dragging a box around multiple units to select more than one unit, you can select multiple units of the same type by holding the Ctrl key and left-clicking on one unit. I think this is well known so i will leave it at that.
Pressing the F8 key also achieves the same function Clicking this icon will automatically select and cycle through your idle workers. The number of any Idle Workers that exist in the field is displayed by an icon in the lower left-hand side of the main view screen, above the minimap. so here are some of the basics of warcraft that i believe can be helpful in improving the skill level of FSA players :).