What is Multislot LCA. Does it has any pros and cons.

When I asked my employer about my H1b application status,I got this reply
Your LCA is already done through multislot"
What is multislot LCA? and how will I come to know about my LCA processing?
Does it has any pros and cons?

A multislot LCA is a single LCA can be sought by an employer to cover multiple employees in an occupation.

These multislot LCAs give employers greater flexibility to respond to time-sensitive H-1B needs, such as there location of H-1B employees to newworksites and the onboarding of new hiresporting from H-1B employment with another organisation. Seeking [b]multislot LCAs[/b] also helps organisation to avoid H-1B delays in the event of another federal shutdown.