You can save by pressing CTRL/CMD S.

Copying and pasting of text can be achieved by pressing CTRL/CMD + C to copy and CTRL/CMD + V to paste.

Here are some more advanced shortcuts for when editing text:

PC

Undo = CTRL Z
Redo = CTRL Shift Z
Increase indent = Tab
Decrease indent = Shift Tab
Clear formatting = CTRL M
Bold = CTRL B
Italic = CTRL I
Numbered list = CTRL Shift 7
Bulleted list = CTRL Shift 8
Insert link = CTRL K
Superscript = CTRL H
Subscript = CTRL L

Mac

Undo = CMD Z
Redo = CMD Shift Z
Increase indent = Tab
Decrease indent = Shift Tab
Clear formatting = CMD M
Bold = CMD B
Italic = CMD I
Numbered list = CMD Shift 7
Bulleted list = CMD Shift 8
Insert link = CMD K
Superscript = CMD H
Subscript = CMD L

Did this answer your question?