Hi,
If you want to change the Maximum Row property of a select JDBC adapter service i.e., if you have to set the value during runtime, create a variable - select.maxRow under adapterServiceSettings in using the service - wm.art.dev.service:updateAdapterServiceNode
Check this attached screenshot for further info.
[ATTACH=CONFIG]845[/ATTACH]
You may use a may step before calling the service wm.art.dev.service:updateAdapterServiceNode add a string under adapterServiceSettings with the name - select.maxRow. Map your runtime variable to this variable.