This key is the special feature of कळफलक.
When it displays "क" it means that कळसूचक is enabled.
When it displays "क." it means that कळसूचक is disabled, and all alphabets will be in use as is normal.
SHIFT:
Changes font case between Uppercase/Capital and Lowercase/Small
Tap once to change from Lowercase/Small to Uppercase/Capital and vice versa.
Tap twice to change from Lowercase/Small to Uppercase/Capital and keep it in Uppercase/Capital.
To cancel Uppercase/Capital, tap once.
DONE:
Whenever you are done typing, and wish to hide कळफलक from screen, tap this key to hide the कळफलक.
To bring कळफलक up again, tap on the textbox.
123:
Change कळफलक layout to numeric and symbols keyboard.
To bring back कळफलक text keyboard, tap on ABC, which you will find at the same place as that of 123 key.
LANG:
to use another keyboard app, tap LANG. If you have more than one keyboard app installed, you can switch to next in line keyboard with this key.
DEL:
Short for DELETE, this key is used to erase previous character.
Single tap will erase one character before the cursor.
RET:
Short for RETURN, this key is used to perform default actions at that time, such as
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