If you wish to copy blog layouts option from JA Sugite to JA Decor. It’s not easy to do with non-tech because you have to experience joomla code if you are a developer you can do with my workaround below
+ Copy templates/ja_sugite/html/com_content/category folder paste to templates/ja_decor/html/com_content/category folder
+ Copy templates/ja_sugite/templateHelper.php file and paste to templates/ja_decor/ folder
and change the function templates/ja_decor/templateHelper.php file to match with JA Decor template.
I am afraid it is going to need heavy customization which is beyond the scope of JA support.