Changing golem runes

[CelesTial]

I haven't found information on this anywhere (only how many rune slots a golem can have / gain), so I assume it's something obvious I overlooked, and a suitably dumb question.

How can I give my golem additional runes (not slots, I know how to increase their number)?

Thanks much!

[Doctornull]

Hit 'i' for your inventory -> click on Rune -> transfer to party -> give to your golem

Click on your golem's party icon (not map icon) to take control of your golem

Hit 'i' for your golem's inventory and 'u'se the Rune as normal

[HousePet]

Golem starts with 3 and can 6 in total.

[Werekracken]

But your golem (and you) can only use 2 of each type. So you cannot have 3 shields.

[loimprevisto]

But two shields, 2 lightning runes, and a rune of reflection is just fine...