I'm entering journal entries and in the grid, there's a comment text field. On different lines I want to append things to what I've entered in the header comment.

Example: 

• Header comment = Apr 2023
• Line comment 1 = Apr 2023 - meals
• Line comment 2 = Apr 2023 - office supplies
• etc.

I have to take my hands off the keyboard, click 3 times at the end of the line to get to the text at the end of the line. If I start typing in the comment field without using the mouse, it overwrites the text that's already in there. I don't want to overwrite it, I just want to add something to it.

I've looked in all the keyboard shortcut guides and did a search on this forum and cannot find the answer.