BS version, Form 4. Opens with an example board; change anything and the layout updates.
Each one is its own section. Give them names such as Mains and Generator. Left, centre or right sets where each sits; sections sharing a position follow the order listed here.
Mounting "Auto" follows the form of separation. "Compartment" forces a P160 or P250 out of the group mounted section. Single-pole devices are marked SP and switch disconnectors SD. Fuse switches fed from the incomer live side are drawn red, marked LS, and placed in the stack next to the incomer. Metered is how many of that line have a meter, shown as an M on the drawing. A PW1 MCCB takes its own 450 or 700 mm section; click it on the drawing to set its size (630 to 1600 A).
Click a section on the drawing to see and change its properties.