Here are my thoughts at this point.
Computer chargers are not 'smart' or 'dumb' enough to be connected in parallel. Not 'dumb' enough because they are not simple DC feeders, like a battery, as they do contain electronics that sense current output, making it adjust itself, and when sensing another charger's current it would try to balance both chargers, not making the difference between the two, resulting into a 'fight', with unpredictable results.
Not 'smart' enough because, chargers cannot adapt for applications they were not designed to do, are unadjustable except for volts/amps presets for universal chargers, dictated by the DC output plugs they come with, and they do not have selectable 'modes'.
The makers knew exactly what they were doing... marketing wise. Most laptop charger are not built to last, as I was warned about when I bought the computer by the sells person. The 'parallel' option would have been a good way to counter that planed obsolescence, but most importantly, offer power unit alternatives.
Feel free to express ideas about this. Your inputs is greatly appreciated. The 60w in a dark room. Thank you.