Hi David,
Thanks for your swift response!
I don't see the .htaccess file in the local or remote file listing, which I am viewing through Dreamweaver.
My ideas was to use UpdraftPlus B&R to backup in prep for migrating from DreamHost to HostGator over the next week. So, instead of wrestling with the DreamHost interface any further, I may just opt to have HostGator handle the migration and then give UpdraftPlus a whirl when this site is on HostGator, where I am able to see .htaccess files.
Susan