When you try to run below three lines at a time:
create queue Telstra.test1 secure,sender_name_enforced,global,trace=body
create jndiname Telstra.test1 queue Telstra.test1
grant queue Telstra.test1 user=test1 receive,browse
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For different version (server and admin tool)on windows OS and does not face this issue.It was able to execute first two commands and need to enter for the third command to execute.

1)8.3 admin tool and 8.3 server
2)8.5.1 admin tool and 8.3 server
3)8.3 admin tool and 8.5.1 server
4)8.5.1 admin tool and 8.5.1 server

-But for same when you try with EMS 8.5 EMS server and admin tool in linux machine,only first command is executed.
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This has found as a problem with the third-party code we used to implement EMS-1608 [Provide command history in tibemsadmin on UNIX]. 
We are tracking this issue through defect EMS-7849 [tibemsadmin fails to process multi-line paste correctly] and will look into addressing it in a future release.
 

Linux, Mac, all the UNIX platforms supported by EMS

Workaround for now: use -no_history parameter.

*You can start tibemsadmin with the undocumented "-no_history" command line parameter to disable the command history feature. 

Doing this will have tibemsadmin revert to its pre-EMS 8.5 behavior when pasting multiple lines was not an issue on UNIX platforms.
Please note that , this command is only to disable the command history feature of EMS server.This will not make any other changes. It will not exclude any other features from 8.5.1
 

For EMS 8.5 version ,in Linux and Mac machines, when tried to execute 3 commands at a time (by copying them),only first command is executed. Which is not the case in windows and also for other lower versions. This issue is not observed in windows.