How to display Customize button of crm in outlook express [duplicate]

I believe that you asked a very similar question recently right here. Just in case you've managed to get totally confused (who hasn't, right?) I'm reposting my answer.

It's supposed to be at Settings > Customizations > Customize the System. A new window will pop up. There, you go Entities > Lead > whatever-you-need-to-customize.

May I also suggest that prior to that, you'll create a solution (which involves creating a solution provided)? It may seem as an unnecessary step but will pay off in the long run. You'll be able to package your changes and distribute then easier.

Straight off, I can think of two gotchas, though. In order to customize, you'll need to:

set the current language to base language,
make sure that the current user has appropriate permissions
enable customization of custom entities (doesn't apply to Lead, though)