Task: For work-related reasons, I must travel to Brussels Central. On November 15, after 6:00 AM, use the SNCB international app to find a train departing  from Aalst to Brussels-Centraal.
Steps:
Open the SNCB international app
Tap on the single option
Tap on the cross icon of departure search bar
Search the departure to Aalst
Select the first search result
Tap on the cross icon of destination search bar
Search the destination to brussels central
Select the search result
Tap on the date section
Select the departure date to 15
Select the departure date to 15
Tap on the departure time
select the timing between 6:00-8:00
Tap on the show trains option