Hi all.
Note sure in particular if this option is then supposed to be added or is considered that it is there so writing here.
I’ve seen in some other post from @shotcut that the option was broken and removed but I’m using latest Shotcut (21.01.29, released on friday, thanks for this great software btw) and I do have that option, however it is greyed out.
I’m definitely using it on one video file that I have split multiple times (as to my understanding that is the only way it works) and would like to connect it back so I can simplify filter and export process, and the filter I want to use at this time (crop source) is not available for the whole track unfortunately.
I also know I can c/p filters per clip and it’s what I usually do but I have 60+ clips so it’s not a real option whenever I modify something. I tried to select all clips and apply filter but it still ends up applying it only for the first one.
So back to the suggestion made here. I would love to merge parts back when I need to work on that area. I usually work around it but it seems the option is there but not working for some reason so should it be added or is just something I could be still doing wrong?
I also realized I’m not the only one with this problem after googling around, and as shown in at least one example with 73 likes to have the same feature
https://www.youtube.com/watch?v=4VWdDMcs6bw
But I also know that there is many features that everybody wants 
Again thanks for amazing software, donation sent as my sign of appreciation,
Best regards