I had to translate Cristian's post: while I speak some Spanish, English is my first language.
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I explain a little my idea:
I will have a Rexx that will collect some data (name, surname, age...) and with these data I need to go to some CICS transaction panels to process them (create users in some environments and other types of operations). Normally I had a member in a form type bibliography, which I filled in by hand and then launched the aforementioned Macro of ".qmc" format. I use them a lot, although I don't know if you can do that by launching them from a Rexx. The macros I am referring to are the ones that you can record from the Quick3270 toolbar with the typical "red circle" symbol, which you can then launch with the typical "arrow" similar to the "play" button on a cassette.
The simple way would be to go directly to the database and modify it (which I suppose is what the transaction does) but I don't know how to do all that part, I don't even know how to locate the database and so on...
I have also seen that macros can be made in members within Z but it is nothing like the language that I find in the macros that I currently make (the .qmc, which are saved on windows) that when opened are script type, example:
HostSettleTime = 3000 ; milliseconds
SendKeys "<Enter>"
Result = WaitForAttrib(13, 69, &H08, &H3C, 3, 3000)
Result = WaitForCursor(13, 70)
Result = WaitForKbdUnlock()
I don't know if I have explained everything well... don't hesitate to ask me if I can give you more information or if you need more data, and thank you very much for having answered me.