I have R 3.5 and 3.6 installed on my Windows machine. My RStudio by default points to 3.5. I want to start up RStudio to point to 3.6 for some sessions. How do I do that without messing with the global options, i.e. changing the default. I remember some website said that you press and hold some button before clicking on the RStudio icon. I don't remember what that button is.
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