Chrome Dev, and use it next to the original one. If you want to use a different channel version next to the main version of Chrome, download a different version of Chrome, e.g.
#Google chrome sign in is it private portable
If you want to use Chrome Portable, download the portable version from PortableApps and use it for certain activity.I suggest that you rename the shortcuts that launch Chrome to better distinguish between the different versions and tasks you use them for. Install the different version and use it for certain activity. Chrome Dev, as those are handled separately from one-another.
#Google chrome sign in is it private install
You may also install a different release channel version of Chrome, e.g. You can download a portable copy of Chrome (for Windows) from PortableApps. Option 2: Use a portable copy of Chrome (or a different channel)