With this command you search for a certain text passage in the current editor window. The Find dialog box opens. It remains opens until the button Cancel is pressed.

In the field 'Find what' you can enter the series of characters you are looking for.

In addition, you can decide whether the text you are looking for 'Match whole word only' or not, or also whether 'Match case' is to be considered, and whether the search should proceed 'Up' or 'Down' starting from the current cursor position.

Find dialog box: