Open pdf externally from Mendeley desktop

Mendeley.Open.Externally.workflow

# From http://biogeolabs.uchicago.edu/sedie/?p=4363
# After brew install cliclick

# Fixed for OS X Mojave
# Error in original: highlight does not seem to go to the context menu, thus every odd arrow-down click reveals the desktop
# Solution: 
# "-- PRESS ENTER" section repeated before "-- ARROW DOWN TO MENU ITEM"  to bring highlight to the context menu.
# remove one of the 4 "arrow-down" statements
# NOTE: cliclick might be installed elsewhere than: /usr/local/Cellar/cliclick/4.0.1/bin/cliclick 
# Use code below, thank the original author.

on run {input, parameters}
    tell application "Mendeley Desktop" to activate
    -- USING CLICLICK
    -- -r returns mouse to original position
    --   w: is the wait time between clicks
    --   c: the coordinates - note that the y coordinate is 900 - GRAB value
    -- click the prefs button
    -- RIGHT CLICK AT THE CURRENT MOUSE POSITION
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick kd:ctrl w:1 c:+0,+0"
    -- PRESS ENTER
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick kp:return"
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick ku:ctrl"
    -- ARROW DOWN TO MENU ITEM
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick kp:arrow-down w:1"
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick kp:arrow-down w:1"
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick kp:arrow-down w:1"
    -- PRESS ENTER
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick kp:return"
    do shell script "/usr/local/Cellar/cliclick/4.0.1/bin/cliclick ku:ctrl"
    return input
end run