Yes, it would be possible, but it is not advisable to do so. However, I will tell you how it could be done:
You should create a .bat file with the command that launches the execution of the second robot and save it in a folder of your choice. Below is the command:
cd "C:\Program Files (x86)\UiPath\Studio"
UiRobot.exe -file "C:\your\project\path\Main.xaml"
Since two robots cannot run simultaneously on the same machine, you should ensure that the second bot starts with a delay. Therefore, you should create a scheduled Windows task for the next minute to launch the previously created .bat file. To do this, open the command line with the first process and execute the command:
To prevent the scheduled task from remaining active on the machine, you should remove the task from the Windows Scheduler with the second robot using the following command: