Computer Interface for a Freight Elevator

This is a puzzle that I used in one of my Mothership games and I thought some other Wardens might find it useful.

The computer terminal is perched at the edge of a rusty, ancient, planet-side freight elevator. It is a tiny terminal with two big chunky buttons and a tiny screen.
At boot up, the tiny screen shows four options, with a blinking icon hovering over the first. The players will quickly learn that the left button SCROLLS OPTION and the right button SELECTS OPTION.

• Elevator operations
• Updates
• History
• Customs

After being selected, the screen gives a different set of options, with the following effects if selected:

Elevator Operations:

• Up: moves elevator up one level at a sluggish pace. If at top of elevator, does nothing
• Down: moves elevator down one level at a slightly less sluggish pace. If at the bottom, does nothing.

Updates:

• Updates available: brings user to the following screen:
  
• Update system?
• Yes: crashes the entire system beyond repair
• No, later: returns to main options list

History:

This section is up to the Warden's discretion, as appropriate for their home game.

Customs:

• Source Sans Pro.regular
• Bankgothic.regular
• 楷体
• 微软雅黑

Selecting any of these options changes the system font and returns to the home screen.