Hi Phillip,
Consider setting the token at the top level folder. You will always be able to override it at lower levels later if needed.
How many emails to you have to update ?
Would probably be worth a blog article about the do's and don'ts when creating emails outside of Marketo...
-Greg
Hi Grégoire
Yep, the top level folder token is absolutely the path I'll be going down - much easier! It's about 240 emails in three different folders.