html/php code

If you going to be editing the theme code, then you don’t need this plugin – quite frankly I feel it would be a bit circuitous and ridiculous ??

either register a new sidebar and call it yourself wherever u want it
https://codex.www.ads-software.com/Function_Reference/register_sidebar
https://codex.www.ads-software.com/Function_Reference/dynamic_sidebar

https://www.ads-software.com/support/topic/simplest-way-to-display-a-widget-area-need-help?replies=10 OR
https://www.themelab.com/see-how-easy-it-is-to-widgetize-wordpress-themes/ (bit long winded)

OR
just call the widget directly – not too hard if settings are simple
https://codex.www.ads-software.com/Function_Reference/the_widget