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Init Wait
Init Wait stands for Initial Wait. Initial Wait to start particular batch/action. Waiting time is provided in sec. It can be used were extension need to wait few more sec for page to load fully before starting its process.
On this page

Examples
1
1.5
0.5
2
1e4
(Random value between 1 to 4)- Leave it
blank
/empty
to start right away
Its not mandatory field. if left blank extension will start executing right away.