UI lock

UI lock disables all interactive controls in the LTCast interface. Use it during a live show when you need to prevent accidental clicks, bumps, or unauthorized changes while the timecode is running.

Enabling and disabling UI lock

• Lock — press Ctrl+L (Windows) / Cmd+L (macOS), or click the Lock button in the toolbar
• Unlock — press Ctrl+L / Cmd+L again, or click the LOCKED banner at the top of the window

A LOCKED badge appears in the toolbar and a banner runs across the top of the window when lock is active. The banner also shows the keyboard shortcut to unlock, so you never have to remember it in a hurry.

What is disabled when locked

• Transport buttons (Play, Pause, Stop)
• Waveform seeking and scrubbing
• Loop point buttons
• All settings controls
• Device panel controls
• Setlist editing and song navigation
• Marker creation and editing
• Keyboard shortcuts for transport and editing

What continues running when locked

• All protocol outputs — LTC, MTC, MIDI Clock, Art-Net, and OSC continue streaming without interruption
• The timecode display and waveform playhead continue updating
• The fullscreen TC display continues updating
• The pre-show check status display remains visible

Recommended workflow

Engage UI lock after your final pre-show check and before doors open. This ensures that nothing changes accidentally during the show — even if someone else sits at the computer, opens the laptop, or reaches past the operator. Unlock only when you need to make an intentional change.