Place unziped folder(s) to
macOS: ~/Library/Application Support/FileMaker/Extensions/AddonModules/
Rich Text Editor PDF: Quill based Rich Text Editor, prints using the browser, saves content as pdf to a container. Drop on layout and click the refresh button, read the integration guide under ?-button. For additional instances, drag again from the Add-ons pane, don't duplicate.
Month Cal: date picker in iCal style. drop on layout, ungroup object, delete blue dot, redirect the field to your field.
Swiss QR Bill: drop on a helper layout and read the description text for integration.
Magic Value List: drop on Layout, ungroup object, delete blue dot, redirect the field to your field, set your values in Let()-statement of the "OnObjectEnter"-trigger.
Magic Value List Two Column: drop on Layout, ungroup object, delete blue dot, redirect the field(s) to your key-field(s), set your values in Let()-statement of the "Hide Object When"-trigger. Value- and description need to be delimited by "||", if provide just a value no description, the value list will be sorted in order of the provided values.
You need one valuelist definition per simultaneously displayed field. A valuelist consists of a table MVL_ValueListXX, where XX is a distinct number x-bound to table MVL_ValueListLink and a valuelist definition.
3 valuelists are set up, just add more if needed, delete unused.