KIS, hitting 1 does not equip?

[Kaerwek]

I am running KSP via Steam, I have KIS installed alongside a lot of other mods.

I have an Engineer, and if I click him, while on EVA, I have the electric screwdriver in the two slot inventory. If I click Inventory, I see a separate inventory:

I read in the manual that I have to in this case click 1 to use the screwdriver.

But clicking 1 nothing happens. I can't seem to move the screwdriver to the KIS Inventory on the left. Hitting X just beeps and I get the message saying I need to equip something first.

Help please? Is this buggy on my computer?

[Kaerwek]

I figured it out. I had to hit the 'i' button, not 1.