I followed your tutorial: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums , and it says to hold down the 1 button and click, but nothing happened… please help!

As far as is skipped through the video it is about the material editor, so i suggest u want to add a constant into ur material… U do this normally by holding down 1 one ur keyboard and left click, BUT u can also do it by searching in the Palette(on the right side) for “Constant” and dragg it into t…

How to make a parameter??

Development Rendering

anonymous_user_46ac01051 (anonymous_user_46ac0105) March 20, 2016, 5:25pm 4

This link should work

But a more detailed explanation of ur problem would be nice