Enter transaction for an ETF (or other security) quoted in a currency other than that of the account

Question

I have purchased a USD-denominated ETN (Exchange-traded Note) in a UK pension account that I have. I don't see a way to buy the security from cash (GBP) in the same account and enter an FX transaction and then enter the security. Any ideas?
 I'm using Quicken Premier for Windows
 Version R29.20
 Build 27.1.29.20
 Any advice gratefully received!

NotACPA · Answer

And thanks to @q_lurker for correcting my typo.

StGeorge · Answer

Thanks! That is what I'll do - I appreciate the quick response.

NotACPA · Answer

{Edit} On Only {/Edit} a single currency can be held in ANY Q account.  You'll need to set up a USD denominated account for that ETN.

{Edit by q_lurker for clarity}