1. Is there a way that I can add 2 sliders via Slider Option on Pages?
2. If the answer of question no.1 is “No” then how to set my 2nd slider to have the same size as the 1st slider? Do I have to code it with Html or CSS? If that so can you guide me please?
The slider created by shortcode is limited to the width of the content area.
Try using a 100% width template.