Would like to display a list of say pending transactions from a table and display a checkbox next to each row so that if ticked these can be marked for processing? What type of form is recommended to achieve this in the easiest way for the user?
Grid and run button. This generates a checkbox field for each row.
A multirecord form where you enable the checkbox option. When a user clicks a button a onrecord event will fire on each record allowing you to execute the step you are doing. But your sample worries me in that way, that you cannot do that within an existing transaction, but I assume it’s a sample.