Hi

whenever i select a text and try to format it like alignment, color change,
bold etc. It impacts entire document. And after this if I press Ctrl+Z to
revert back it makes the document as I wanted it to be.

For e.g. If i select a text and click ctrl+B then it messes up entire
document and after this if I press Ctrl+Z it will revert document to normal
and the earlier selected text will be bold. This is pain when it does for
every little thing.