Hi I have spent an hour to fix this, see below what I have done (LibreOffice 24.2.5.2):
- Select/highlight (mouse double click) the heading that you want to remove the “TAB” in front.
- Top menu: Tools, select menu “Heading Numbering…”
- At the top, there are two tabs: Numbering and Position, select the position tab.
- Change the field “Followed by:” from “Tab stop” to “Nothing” and press “OK”
- You will see your heading moving toward left since the tab is removed.
- Next time the same Heading will be created/inserted, it will have no TAB in front, enjoy …