Randomized roll call tool

1. This tool allows you to conduct random roll calls online, with the option to include repeats or exclude repeats.

2. Click the "Settings" button to enter a list of candidates for roll call, or to set the text color and background color for the random roll call.

3. Click the "Full Screen" button to expand the random name selection area to full screen. Press the "Esc" key on your keyboard to exit full screen mode.

4. In "Full Screen" mode, you can use the "Space" key on your keyboard (this feature must be enabled in Settings) to start or pause the selection of names.

5. After entering the list of candidates in Settings, the tool automatically saves the information to the browser database and auto-fills it the next time you open Settings.

6. Click the "Details" button to show or hide the current list of candidates and the list of those already selected.

7. Clicking the "Clear" button will clear all data from the current tool; please use this feature with caution.

8. This tool does not collect or upload the information you enter; you can use it with confidence.