I lost my "Done" box in Develop mode of Lightroom Classic. How do I get it back?

[Craig Tidball]

Forever I had a "Done" box in the lower right corner of my Develop work space.  I used it to accept enhancements.  Now I have to hit return but I miss that button. How do I get it back?  

[Rikk Flohr: Photography]

[ T ] for "T"oolbar will reveal your hidden toolbar.

[Craig Tidball]

Thanks, Rikk. Love those simple fixes.