In Rstudio when auto-indenting (ctrl+I) function definitions, function arguments get indented with two tab spaces. How can I set it to one tab space?

Question

In RStudio, I am having trouble properly aligning function arguments when using the auto-indent tool (ctrl+I). The resulting function definitions either end up vertically misaligned or with too many spaces before each argument. I want just one tab space before each argument.

Here are the current outcomes when adjusting vertically_align_arguments_indent:

• Output 1: Using rstudioapi::writeRStudioPreference("vertically_align_arguments_indent", FALSE)

MyFunction <- function(
    arg1,
  arg2,
  arg3
) {
  # stuff 
}

• Output 2: Using rstudioapi::writeRStudioPreference("vertically_align_arguments_indent", TRUE)

MyFunction <- function(
    arg1,
    arg2,
    arg3
) {
  # stuff 
}

Instead, I would like the auto-indent tool to produce the following output:

MyFunction <- function(
  arg1,
  arg2,
  arg3
) {
  # stuff 
}

Can someone suggest the correct RStudio settings to achieve my desired output?

NB: I cannot solve this just by setting the tab spacing to be shorter. If I do it the body of the function will keep on being unaligned with the arguments.