Consider following component option annotated with Updatable:
https://github.com/Talend/component-runtime-qa/blob/master/components/qa/src/main/java/org/talend/components/qa/actions/updatable/QAUpdatableDataset.java#L74-L77

and Update action:
https://github.com/Talend/component-runtime-qa/blob/master/components/qa/src/main/java/org/talend/components/qa/actions/updatable/QAUpdateService.java#L78-L91

There are following bugs on web form
(mvnDebug talend-component:web was used to reproduce)
1. When user adds some rows to table and press "filter" button, action method is called, but it receives emtpy List parameter, but List parameter should contain rows added by user.

2. "Filter" button is present on both layouts: Main and Advanced.