Run several indexes as a service using fscrawler

Question

I have successfully created an index job using fscrawler and made it run as a service in windows as shown in the documentation:

set JAVA_HOME=c:\Program Files\Java\jdk15.0.1
set FS_JAVA_OPTS=-Xmx2g -Xms2g

/Elastic/fscrawler/bin/fscrawler.bat --config_dir C:\Documents\Elasctic\fscrawler job1 >> 
/Elastic/logs/fscrawler.log 2>&1

However, I have several jobs (like 10 of them) which I would like to run concurrently. I have tried adding the start command as below but it gives me errors:

set JAVA_HOME=c:\Program Files\Java\jdk15.0.1
set FS_JAVA_OPTS=-Xmx2g -Xms2g

start "" /Elastic/fscrawler/bin/fscrawler.bat --config_dir C:\Documents\Elasctic\fscrawler job1 >> 
/Elastic/logs/fscrawler.log 2>&1
start "" /Elastic/fscrawler/bin/fscrawler.bat --config_dir C:\Documents\Elasctic\fscrawler job2 >> 
/Elastic/logs/fscrawler.log 2>&1

How do I add several index jobs to the batch file so that they all run simultaneously?