All general view settings will be available on the right sidebar when you click on view block. Please check the following image for reference:
=> hidden link
Q1.
how can i insert this Loop to the page which i created with Divi?
do you know how to insert forexmple shortcode?
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For now, we recommend to our clients to stay with Divi 3 on sites that have both Divi and Toolset.
Q2.
this Blog Loop shows all categories.
how can i chose category only what i want?
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when you click on view's block on right sidebar you will see all the sections. To filter your view with specific taxonomy, you should use the "Query Filter" section and add your taxonomy query filter.
Q3.
how can i add limit of blog posts?
i want to show only 6 posts.
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when you click on view's block on the right sidebar you will see all the sections. To limit the post to 6, you can use the "limit and offset" section.
Q4.
how can i show Blog posts
by most viewed? (and new to old too)
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How we can know that this blog post is most viewed? Have you added anything related to this functionality?
Q5.
where can i add CSS code for this LOOP?
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When you click on the Loop section of view block, you will see the right section with all available option. Please check the following screenshot: hidden link