The "MechLab" is where you build your 'Mech. The figure below shows a fully stripped Atlas AS7-D-DC. You will seldom see BattleMechs so empty, but it's a good place to start. Because this interface must work on many different monitors and resolutions, the Mech Bay is very modular. The below images were taken on a 1920 x 1080 display.
1. 'Mech Layout - The 'Mech is displayed as a schematic with every location's slots available for use. Fixed components are shown in grey - they cannot be removed. "Empty Slots" are available for components. We will build or Atlas below.
2. Warehouse - All components that can be installed on the 'Mech are shown here. The contents of each tab will dynamically change depending on the hardpoints. If you install components that you do not currently own you will be charged when to select "Save".
3. Side Menu - MechLab screen sub-menus. Details below.
4. 'Mech Stats - Dynamic listing of 'Mech information, updated as components are added. Selecting the top-left symbol will expand the window to show full 'Mech details. Also has buttons to strip your 'Mech, reset any un-saved changes, and take the currently configured 'Mech (even if not yet saved) into the Testing Grounds.
5. Build Warnings - A red triangle is a build alert, there is an error that will not allow the 'Mech to launch into a match. A yellow triangle is a build warning; the 'Mech can launch into a match but the MechLab is warning you about your build. Examples include locations missing armor, heat increases due to simultaneous weapon usage and weapons missing ammunition.
6. 'Mech Upgrades - Drop menus to allow for upgrades to armor and structure (see Armor/Structure for more information), heat sinks (see Heat for more information and missile guidance (see Artemis for more information).