Create/Edit widgets listfiy

Hello. I need some simple widgets and adjustments on my listify theme. Theme used - Listify - Directory Theme I want to add some new widgets tot my theme. - Author widget: create a custom author widget which will shows a list of authors (more fields, extra information and a different layout) - Listing widget: create a custom listing widget which will shows a list of listings (more fields, form different post types, extra information and a different layout) - Single listing widget: shows detail information about a listing (more fields, form different post types, extra information and a different layout) All widgets must function like the existing widgets. No need to program ext. Starting: directly Reactions with fixed fee and hour rate. thanks!