msfconsole can manage multiple modules at the same time. This is one of the reasons it provides the user with so much flexibility. This is done with the use of sessions, which creates dedicated controlled environments
Using Sessions
We can background the session as long as they form a channel of communication with the target host. Use cntrl+z combination or by typing the background command in the case of Meterpreter. And to list all the sessions, you use the sessions commands. And these modules can be found in the post category, referring to Post Exploitation modules.
Jobs
In the case of running active exploit under a specific port and need this port for a different module, we can use jobs commands to look at the currently active tasks running the background and terminate old ones to free up the port. You can use the jobs -h to list the help menu. And exploit -j to run the specific exploit within that context of the job.