Keyboard Maestro?

I can recommend Keyboard Maestro as one of the finest pieces of software ever written for Mac. I've use it for over 8 years. If you follow the Mac Geek Gab podcasters, you'll regularly hear them give unqualified praise for Keyboard Maestro.

As to your specific, there's no problem moving using KM to move the pointer around on the screen and left-click or right-click, etc.

Here are some tips for this. First, bear in mind that, if Word is opened at different locations on the display, using pointer movement commands won't be easy to do. Second, get the CursorCoordinates app (You may not need it, but it is invaluable if you do need it). Third, I always start this type of macro by first moving the pointer to the "Apple Menu" on the "Menu Bar" by having KM type the Ctrl-F2 keystroke, then I type a series of right arrows, down arrows, etc. until I get where I want within the menus and submenus, then I have KM do a right-click of the mouse.

Yes. Keyboard Maestro is 64 bit and will continue to work with the next systems. It can access pull down menus, launch apps or documents, add predefined text to documents, and much more. I've been using it for over a year now and have created and use over 400 macros. Outstanding app.

FWIW, most apps have menu item shortcuts you use instead of selecting them with a mouse. You can also create shortcuts for menu items that don't have assigned shortcuts. Whether you can do that with Word or not someone else will need to answer.

I don't have Word so I don't know what works with it but you might want to look at Karabiner-Elements as well.