Survey & Markup Settings
Under Account & settings in the menu. Open the page
Which trade layers the Survey & Markup page offers — switch off the trades you never draw.
Methodology: Every layer — electrical, lighting, plumbing, heating, security, entertainment, ventilation — is on by default. Switching one off is purely cosmetic: it hides that tab and palette to tidy the markup page. Anything already drawn on a hidden layer is kept, its tab stays visible while it holds items, and everything returns when switched back on.
How to use: Toggle off the trades you never survey. You can change your mind at any time without losing markup.