SAP automation: How to activate Particular session

Help
1

Hi,
I am working on SAP automation.
I have to execute 6 different transaction code into 6 different SAP session.
for execute transaction code I already have 6 VB scripts.
I am stuck in how to activate a particular SAP session so I can run particular VB scrip on that.

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2

Hello.

Use the activity “Attach Window” on each specific window, each time you need to execute another activity over that SAP window/session opened.

Best regards.