Turning on and of log me in in a mac

Hello Everyone,

can someone give me step by step on how to turn on and off, or enable or disable logmein in a mac computer running catalina please 

to be more precise, i know how to turn it off, you right click the logmein icon on the top right and click switch off but then how do i turn it back on so i can access remotely that computer?

thank you,