I tried a *.bat file
Want to open multiple jmp.exe in a row.Each interval is 8 seconds.
"I:\00\jmp151\jmp.exe" D:\0\test1.jsl /runcscript
ping -n 8 127.0.0.1 > nul
"I:\00\jmp151\jmp.exe" D:\0\test2.jsl /runcscript
ping -n 8 127.0.0.1 > nul
"I:\00\jmp151\jmp.exe" D:\0\test3.jsl /runcscript
ping -n 8 127.0.0.1 > nul
"I:\00\jmp151\jmp.exe" D:\0\test4.jsl /runcscript
exit

In reality, only one JMP can be opened.
However, making these four commands into four independent bat commands and executing these four BAT files respectively can run four JMP processes.
Thanks!