Oh no! I just checked my project again and found 3 effects were used in it :/ Sorry, my bad. I removed the effect and now Construct2 is allowing me to edit further. I was focusing on event count so much that I totally missed it!
Thanks to both of you
Remember, it's not just the event count that can trigger the limit.
From the manual:
[quote:t9v5j202]
A maximum of 100 events in a project
A maximum of 4 layers in any layout
A maximum of 2 effects in a project
No folder organisation in the project bar
No event search
No configurations bar
No Families
No Preview on LAN ?
Not allowed to be used for commercial purposes (however, it can be used in education and other non-profit organisations)
Check on effects, layers etc.