Construction missions help

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Just recently got back into KSP again with the most recent update. I am getting the missions to add parts to satellites and rovers to make them functional again, but I'm unable to do anything with the parts that they require because I can't pick them up with my engineer.
Example being attach one of the
relay antennas to a satellite, but it's too heavy to fit in the engineer's inventory. How am I supposed to complete this?
Thanks

[GunsForBucks]

Go EVA with engineer.
On right side of screen hit the crane icon to go into construction mode.
You can drag stuff right out of storage and have the engineer attach them.

Warning contracts are bugged and you may need to Alt F12 to auto complete them when done.
If alt f12 does not work on your system then
https://steamcommunity.com/sharedfiles/filedetails/?id=2300689007

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Fantastic! I have so many mods that stick buttons over there on the right side I must have missed it lol!
Thanks!