Caps Lock And Tab
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Keys
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| CTL+LBL - Caps Lock
| CTL+1 - Caps Lock
| TAB - Tab
| CTL+I - Tab

Function
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CAPS lock forces all alphabetic characters to capitals. This function is
shown on the top line of the display. Pressing caps lock a second time
turns the function off.

TAB moves the cursor onto the next tab position in units of 8, i.e.
column 8, 16, 24, etc.

Remarks
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CAPS lock is useful for entering programs.