Request for explicitly creating R dataset

I'm used to doing the data munging with R. So I've gone from reading it from source, also for the visuals, and now some of the intermediate calculations. The big plus is the tidyverse arsenal, which I really like. For the visuals, every time I focus on the R box a dataset gets created before the RStudio editor opens with the address of the dataset. Thus I can do testing in RStudio before copying the code back to Power BI for implementation. However on data preparation, I haven't found the way to track down the dataset with which to test the queries in RStudio. So I cannot do the transformations easily. I'd like to request a way to track down these datasets in order to prepare the Rscript in the Studio. Thanks.