Only filled fields data from optional fields in Custom form into operations in fusion

[Elanhere]

in my custom form, I've Group Title1, Group Title2, Group Title3, Group Title4.... & upto Group Title40. These fields are displayed using display logic based on the number of group titles selected in prior. User may select only 5 group titles and fill five fields. 

Now in fusion, I need to use these in aggregator and perform an operation for each for this value. Appreciate any help, thanks in advance.

[Elanhere]

Please ignore this guys, I just realized its a silly question. For anyone its needed, 

1. Insert a "set multiple variables" module before the aggregator module and define all the forty and map with its values from your read record module. 

2. Use the data from "set multiple variables" in aggregator module

3. Set filter after aggregator to pass only if the data exists

Boom, it worked!