Hi!
I have a Long text field that has 152 lines.
Each line starts with either [ ] or [ x ] and is then followed by 10 digits (at present).

How would I “magically” disapear all lines starting with [ x ] using a formula?

Is there a way to "disapear " a whole line from [ x ] to \n without knowing the amount of caracters inbetween? That would be ideal if possible.
I need to “disapear” lines from top to bottom (first line 1, then line 2, then line 3 and so on…) and not at random through the entire field if that makes any difference.
I have tried various “solutions”, but haven’t found what I need. I’m probably nesting/combining it incorrectly and by now I’ve stared myself blind at the problem trying to get it right. I would greatly appreciate any and all help I could get.