Each web-scraper appears to be a program, writen on ScraperLab Script language. Editor serves for program text preparation and changing. The script itself could be edited by creating language designs and functions, also "built-in" browser could be used. In the "built-in browser" web-page needed for scraping could be loaded and data collecting rules could be created visually. When saving or changing to the script mode "built-in browser" objects would be converted to the script automatically. When changing from script mode to "built-in browser" script would be converted to browser objects.
So, at the right sight of Editor there are several tabs. "Browser" tab is switching to "built-in browser" mode. "Script" tab switching to script editing mode. There is one more, "Export" tab, switching to export rules creating and changing mode.