Running simultaneous meetings with CLiKAPAD keypads.
Yes, the same license key can be in use by multiple computers simultaneously. However, each session needs it's own receiver.
Generally, if multiple receivers are purchased, they are added to a single license and when additional receivers are purchased, the serial number for those are added to the existing license key, so that all users within the organisation can use any of the equipment.
If you only have one receiver, you could potentially run one session using keypads and another using virtual keypads. This would require an active support subscription.
Your license information will show the serial numbers of registered receivers (if it is a base license) and you support expiry date.
If your license type is listed as a user license, that will work with any receiver but the license key can only be on one computer per user. This license type is old and is no longer available to buy.
To check your license info open PowerPoint and go to Add-ins > CLiKAPAD > About > Register.