More buttons added to an Easy Slider

Hi folks. I’ve seent that you can easily add a button to an Easy Slider by pasting the shortcut code to the “Caption text” section of the slide.

I’ve been using this shortcode that I’ve found in one of your examples:

[av_button label='Click me' link='manually,http://' link_target='' size='small' position='center' icon_select='yes' icon='ue800' font='entypo-fontello' color='theme-color' custom_bg='#444444' custom_font='#ffffff']

if I add more than one in the same Caption text field, the buttons are shown one on top of the other in a column, all aligned to the left of the slide.
See the screenshot: https://imgur.com/xvzBk0b

How can I have the buttons aligned side by side, in a row, with some space between them, and all CENTERED horizontally (and if possible also VERTICALLY) insode the slide?

Thanks in advance!
Bye,
A.-