how about “S” hooks?….
They make plastic clips,you can find them wherever lights are sold.
we have that same thing. we turned those things upside down. sometimes that can work. just mess around with them to see what would work best for your gutters.
get a ladder and have some 1 holde the bottom and then climb up the ladder with the lights and put them up
An s hooks sound like your best shot the are very cheap from hardware stores and basically just look like little peice of wire bent into an s shape.
For the heavy duty lights that its okay to connect five together.
The heavy duty lights on the heavy duty lights that say on that way youll know ahead of time if strand is out and never connect more than.