Using Classic Editor:-
You can easily add Cool Plugins timeline using Divi page builder, just follow the below steps:
Step 1:- Goto Pages/Post >> Add new page/Post >> choose Use the Divi Builder on the page/post where you want to add cool plugin timeline.
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Step 2:- In Divi Page builder insert the column and click on insert module.
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Step 3:- Choose Text module.
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Step 4:- Generate Timeline Shortcode using classic editor or copy shortcode from demos and paste in Text editor block.