Sorry if this has been posted but i couldn't find this.
Use application dock widget (it takes a whole row, so clear so space then you can move it)
Use which ever short cut you want for our contact (i use contact, cause then i have options for call, text, email)
put the short cut on desktop, then drag to application dock.
You can put a whole bunch in the application dock, but just depends how much you want to scroll. (Just gently swipe left/right to scroll through contacts
You can now call, text, email, with 1 swipe and 2 clicks
You can also put apps in here, and use multiple application docks!!
You an move the app dock once you have it as you like by clicking and holding the left edge of the dock..took my forever to 'accidently' figure this out...