Hi Victoria,
a function for reading Wildlife Insights data will be part of the next release. It provides the data from Wildlife Insights in standard camtrapR format, so you will be able to use filterRecordTable.
Upon second thought, that may in fact already be possible with the images.csv table from Wildlife Insights. You'd only need to set the parameters of filterRecordTable so they match the column names etc of the images.csv table instead of standard camtrapR names.
Feel free to ask for clarification if you're having trouble.
Best,