Install plomino.tinymce

Add egg in the buildout

Edit your buildout.cfg eggs section:

eggs =
     ...
     Products.TinyMCE
     plomino.tinymce

Note: with Plone 4, Products.TinyMCE is not needed (it is already part of Plone 4).

And the zcml section:

zcml =
     ...
     plomino.tinymce

Then you have to run your buildout:

bin/buildout -N

Install plomino.tinymce in your Plone site

Now you can restart your Zope instance and in your Plone site, go to Site setup / Add-on products, install TinyMCE first, then plomino.tinymce.

Go to your personal preferences and choose TinyMCE as your rich text editor.

Now, when you edit a Plomino form layout, you can add/modify fields, hide-when formulas, actions and subforms using the extra buttons added in the TinyMCE menu bar.