Text Alignment for Urdu Right to Left

Enable Complex Text Layout (CTL) support using

Tools → Options → Language Settings → Languages

It may be necessary to restart LibreOffice after enabling CTL.

Then:

Ctrl+Shift+D or Ctrl+Right Shift - switch to right-to-left text entry

Ctrl+Shift+A or Ctrl+Left Shift - switch to left-to-right text entry.

If the shortcuts don't work using Left Ctrl, try Right Ctrl.