External Tool Configuration
To modify the existing External Tools, or add new ones, use the External Tool Configuration Window. This is particularly useful after you've installed a new version of R, to make sure tools such as R CMD INSTALL are run with the intended R version.
Switching a Configuration's R Version
If you've installed a new version of R, you can edit your external tool configurations to work on the new R version. Navigate to the 'External Tools Configuration' window, select the desired configuration, and change the selected configuration in the 'R Config' tab.
Architect ships with built-in functionality for processing LaTeX, Sweave and knitr documents. These can be run via the External Tools dropdown menu, and further customized and modified in the "External Tools Configurations" window.