[New Version of Spreadsheets] How to make text overflow into adjacent cells?

[New Version of Spreadsheets] How to make text overflow into adjacent cells?

I recently changed to new version of spreadsheets, the team has done a excellent job! Now its much more responsive and faster while making changes . 
But I am having a big issue, all the cells are by default formatted to have no text overflow to adjacent empty cells .  This has made my old spreadsheets look very different and not as it was intended at the time of creation.
Is there any way to permit text overflow?