Rhyniognatha won't pick up vaults in single player

[Ellisdee]

I am having trouble picking up my own vaults in single player on the island. I can pick up wild dinos and my own dinos just fine. I have resin in the rhyniognatha as stated by the wiki.
I was just wondering if this is a pvp only thing or is there a command line in the ini I have to change? (Not using any mods btw).
thanks.

[Bandit]

I had trouble too: Two things.
You can only pick up the vanilla vault - not the S+ one, if you're using that mod.
To pick up structures you hold CRTL and use your target icon to point at structure you wan't to pick up. The target icon will turn red, and the structure white. Left click to pick up while still holding CRTL. To place it again, just press left click.
Note that structures can only be placed on foundations, so you'll need to put a few down first.