How to change h1 to h1 data-splitting, h2 to h2 data-splitting?

How to change to <h1> to <h1 data-splitting>, <h2> to <h2 data-splitting>?

How can I change <h2> to <h2 data-splitting> and <h3> to <h3 data-splitting> and <h4> to <h4 data-splitting>

Will this afftect SEO?

Is it possible to add <section data-scroll> before <h2> tag in homepage only and </section> after the read more tag of the every post in the list.

• This topic was modified 2 years, 4 months ago by MKDan.
• This topic was modified 2 years, 4 months ago by MKDan.
• This topic was modified 2 years, 4 months ago by MKDan.
• This topic was modified 2 years, 4 months ago by MKDan. Reason: tags disappear from title
• This topic was modified 2 years, 4 months ago by MKDan.
• This topic was modified 2 years, 4 months ago by MKDan.