This tool, which acts as a front end for Sox, can do batch samplerate conversion enabling you to convert to any wished sample rate; New Tool (3.0): dBatchProcess - #4 by kytdkut
https://forum.renoise.com/t/how-to-sort-tables-that-appear-in-popup-menus
Above link seems to still have the code content as text, but needs to be put in a script.