key words in SAP script layout

Hi,

Currently I am working on developing an SAP script from scratch.

While dealing with SAP Scripts, in the layout text editor, we generally use some operators.

like '<b>,,</b>'(two commas) means a TAB space.

Can anyone provide me the list of such operators..?

That would help me alignment and etc.

Thanks in advance.

Regards,

Paddu.