How to Add to Environment Variables , path of Following

I am trying to add Xampp and Mysql executable files on windows 8.1 and Windows 7 , I am following a tutorial for  preparing My system for development , however, I am straggling in one step so far because I got different  window pop to me when I do edit .

The Tutorial Step is :
1. Go Control panel
2. Go to Environment Variables from System Properties >> Advance
3. Then go path and click edit , so it get them a list of paths as show following picture
This is window which I select path from the box
pic-1.JPGand I should get such as window pop up
Path list , when click Edit
However, what I get is the following

that what I get
So, please let me know what should I do , and I need to do those settings in windows 8.1 and Windows 7 .
gboyleukAsked:
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Shaun VermaakTechnical Specialist/DeveloperCommented:
Just add extra values with semicolon (;) as the delimiter

Those are just two different displays of the same underlying values
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David Johnson, CD, MVPOwnerCommented:
There are system and per user path variables.  System applies to all users, and per user applies to the current user only.
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gboyleukAuthor Commented:
Thank you, Done but I really like their view than mine .
at least less user error .
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