When will Manager implement multi-currency module?

Multi-currency has been already implemented but it hasn’t been released yet. I’m currently going through a lot of testing to make sure nothing is broken since it affects really everything when enabled.

It might be released possibly tomorrow.

I am trying to set up a different currency for one Customer.
Went into “Setting” as per posting in May,2014 but there was no “Customise” tab.
Can you help?

First you need to go to Settings > Base Currency and select your base currency.
Next go to your Customer and click Edit, a new currency selection field will be displaying.

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