Draw Table and Eraser tools not in Table Tools Layout Tab

CFE2019I was having the same problem - I opened a document with a table in it and then I went to TABLE DESIGN: then I went to the place on the ribbon where I wanted to add the Draw Table, Erase, etc. and right click on the ribbon and choose "customize the ribbon".  In the left box, choose "all tabs" and in the right box choose "all tabs" then in the right box, scroll down to "TABLE TOOLS" where you will see "table designs" followed by "Table Style Options" etc.  I inserted "new tab" after "Table Style Options" as that is where I wanted them to appear and renamed it to "Cell adjustments" and then I went to left column and scrolled down to "Draw Table" and added it to right column.  Continue to add "Delete cells" (the one with the red X in it), then "insert cells", "Insert above", "Insert below", "Insert right" "Insert left" and then click OK and VOILA they are where I wanted them.  Good luck!