Click on Template, here you will see Edit HTML button so click on it
3. Now in template coding structure search for <head>
4. After searching <head>, paste the below whole piece of code just below <head>
<!-- All In One SEO Pack 2015 v2.0 by BloggerCell Start -->
<b:if cond='data:blog.pageType == "index"'>
<title><data:blog.pageTitle/></title>
<b:else/>
<title><data:blog.pageName/> - <data:blog.title/></title>
</b:if>
<b:if cond='data:blog.metaDescription != ""'>
<meta expr:content='data:blog.metaDescription' name='description'/>
</b:if>
<b:if cond='data:blog.pageType == "archive"'>
<meta content='noindex, nofollow' name='robots'/>
<b:else/>
<b:if cond='data:blog.pageType == "index"'>
<b:if cond='data:blog.url == data:blog.homepageUrl'>
<meta expr:content='data:blog.title' name='keywords'/>
<meta content='index, follow' name='robots'/>
</b:if>
<b:else/>
<b:if cond='data:blog.pageTitle != data:blog.title'>
<meta expr:content='data:blog.pageName' name='keywords'/>
</b:if>
</b:if>
<meta content='GOOGLE VERIFICATION CODE' name='google-site-verification'/>
<meta content='BING VERIFICATION CODE' name='msvalidate.01'/>
<meta content='ALEXA VERIFICATION CODE' name='alexaVerifyID'/>
<meta content='global' name='distribution'/>
<meta content='1 days' name='revisit'/>
<meta content='1 days' name='revisit-after'/>
<meta content='document' name='resource-type'/>
<meta content='all' name='audience'/>
<meta content='general' name='rating'/>
<meta content='all' name='robots'/>
<meta content='en-us' name='language'/>
<meta content='USA' name='country'/>
<meta content='@Facebook' property='fb:admins'/>
<meta content='@Twitter' name='twitter:site'/>
<link href='https://plus.google.com/+Bloggercell/about' rel='author'/>
<link href='https://plus.google.com/+Bloggercell/posts' rel='publisher'/>
</b:if>
<!-- All In One SEO Pack 2015 v2.0 by BloggerCell End -->
5. save templete and refresh your page and start post
6. You will find post setting button in right side corner
