Currently, a user must use GREL function replace for replacing a string or a regex pattern. It would be nice (especially of non coding users) to provide a graphical menu for doing that operation, like Excel or Calc.

Describe the solution you'd like
Add a new menu "Replace" in "Edit Cells > Common transforms". The menu will open a box, asking for 2 informations : text to find and text to replace. Some options could be provided : use regexp, case insensitive or not...

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
I am already working on that and will submit a pull request