Simple code in php for WP ALL IMPORT PRO plugin

!!!Only!!! for devs with experience with WP ALL IMPORT PRO plugin and Woocommerce with good knowledge of PHP. In the plugin WP ALL IMPORT PRO is on the bottom "Function Editor" where you can paste your PHP code. I just need PHP code which will do follow:(example) if XML contain node <PARAM_SIRKA><![CDATA[12.00]]></PARAM_SIRKA> it will print "Šírka: 12.00" into description, if it contain node <PARAM_MATERIAL><![CDATA[Keramika]]></PARAM_MATERIAL> it will print "Materiál: Keramika" into description ..etc etc and few other things. I know I can assign custom field for each node, but it will go to "More details" tab but I need a piece of code because I need all those parameters goes to "Description" field only (everything in one page). If it's not clear what I mean I will provide more details, links, and instructions via chat. For experienced PHP dev, it would be a piece of cake. Don't bid on this project if you have no previous experience with this particular plugin, please. Thank you.