Batch File includes program sub-Menu

As I am new with Batch files, I hope someone can help me.

I want to create a batch file to use a program sub-menu option.
This option is located under Program>>Tools>> Convert.

Example:
Program name: SubtitleEdit.exe
Sub-Menu: Tools
Sub-Sub-Menu: Batch Convert

What I want to do is:
write a batch file to convert a subtitle files
Exmaple: From (*.srt) To (*.ass) "Or whatever..."
by using "Batch Convert" option which is a sub-menu under "Tools" toolbar
inside subtitleEdit program.

Any Help?

Welcome to the forum. I would look at the free autoit it gives more options than batch file and if you're stuck you can record what you want to do and it will write code for you

Thanks Samurai..

Is there a portable version of this program?
I am not administrator on my pc and Can't setup a new app unless it is portable

You write the code and compile it to an exe it's not portable as such but the files can be run without install so you could just run them from usb etc just googled and yes it is portable there are lots of free code and support forums for it

Dear Samirai..

Sorry for bothering again

I checked the advised app and it is very nice,
Thu it depends on the pressing clicking according to pixel.

Is there a way I can convert the information in the saved the
autoit result file to *.bat Or *.vbs.