Use a bootstrap theme

Hello, i would like to know if it's possible to use a bootstrap theme i bought in bootstrap studio. Theme link: Thanks.

Edit ignore me to use that theme you will need to create your own custom css (right click on style sheets in design pane) and copy over your css from paid theme.

Double click to open the custom css and it will open in a new tab (in the design panel) and you can paste over your theme css. This will overwrite the bootstrap defaults

How can I reuse a couple of the bootstrap studio themes on my app? I would like to have drop down button so user can select the themes he/she likes