Clicking last row button in Data Grid continues to prompt "Do you want to continue fetching data?" (4309424)

After clicking the last row button in the navigator toolbar at the bottom of the Schema Browser Data Grid, Toad contiinually prompts every 500 rows:

n records have been fetched. Do you want to continue fetching data?

How can this prompt be disabled, or the amount of times displayed, reduced?

1. To completely disable:                                                                                                                                                                                  Uncheck View | Toad Options | Schema Browser | Data tab | Warn after n fetches | Apply | OK
2. To reduce the amount of times the message is displayed:                                                                                                                            Increase the value of Warn after n fetches e.g. Warn after 10 fetches