1. In CSV cell selection mode, double-click outside to create a new cell.
2. Typing something in the cell, before press “Enter” to complete the typing,
3.a. If Click or Double-click any new cell in the different Line is OK.

3.b. If Click or Double-click any new cell in the same Line, it will display “The current settings do not allow embedded delimiters.”

Similar operation, but different result.