How can we find duplicate/unused code in a project?

Is there a way to find duplicate/un-used code in a project?
Are there any utilities/toolkits or anything that might facilitate in this respect?
Have a pleasant day!
Thanks for your time!

Thanks GerdW for pointing out one of my earlier post to which you had so kindly replied. But that post was about VI's that are redundant and not being used in the project (your solution was mighty useful and handy; saved me a lot of time; thanks for that), this post is about finding code being used in VI's (that are being used in the project) but contain parts (code) that is not being used in the project (like maybe they were ported from some other related project and now contains redundant code bits). My question was is there an automatic way of finding those code bits out and removing them.
Thanks for reply!

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How can we find duplicate/unused code in a project?

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