Setting blogger conditions tags – Web Applications Stack Exchange

in blogger blog, you cant customize how your labels by default Eg. your Title and meta robots but you can use conditions tags to customize certain label

If i have let say 100 labels and i have ONLY 2-3 label that i want to customize

--Tags responsible for ALL Labels--
<b:if cond='data:blog.searchLabel'>
  <!-- all label pages -->
</b:if>
---------------------------------
--Tags responsible for certain label--
<b:if cond='data:blog.searchLabel == "books"'>
  <!-- for label 'books' -->
</b:if>

Then i used the conditions tags like this one

<b:if cond='data:blog.searchLabel'>
<meta content='noindex,nofollow' name='robots'/>
</b:if>
<b:if cond='data:blog.searchLabel == "books"'>
<meta content='index,follow' name='robots'/>
</b:if>

but all labels tags override everything, what im trying to achieve is set meta robot index,follow on BOOKS label but set meta robot noindex,nofollow on all labels except BOOKS