Hello,
1. Sliders to show on my online shop home page?
–> this functionality is not included in our theme.

2. How can I get “Support Service’ to display on the homepage?
–> Support service section is not included in our theme, if you want to add a support section then you have to pay extra charge.

3. How can I get the “Multilanguage’ sign to display?
–> you have to download “Google Language Translator” plugin, then use shortcode where you have to dislpay Multilanguage.

Thank You.