Please can you help me create this type of slider (or send me the file)
Thanks for the support.
Attached also the slider of my web that I want to modify (yellow color)
Thank you for your question.
To achieve that you have to install that app showcase slider revolution plugin add-on on your site but if you have not purchased slider revolution plugin and using the plugin bundled with the theme then you are not direct customer of that plugin so can not register that plugin and install the add-on until you purchase it.
Please see more information about this on the following pages.