Importing projects from other software into Hitfilm
Hitfilm's editor previewing is inefficient, and the compositing pre-render previews is too slow for the first step of trimming & placing clips for large projects (doable, but tediously time consuming). So, I'm hoping to use some other free software for that, and export/import into Hitfilm Express. Is that possible? Can Hitfilm Express import project files other than HFCS? What about the "Quicktime Import" for video, does that include basic project data (I've never been clear on what Quicktime is entirely)? Can any other software export HFCS (or Quicktime project export, if that's a thing)? Shotcut/Openshot/Fusion 9/Natron/Kdenlive/Cinelerra/something else?
In another software, I can trim/choose placement, then extend/separate the clips, render as 1 video, & cut/edit finish in Hitfilm, if need be, but I'm desperately hoping that's unneeded; can't seem to gather a definitive answer.
Additionally, just in-case anyone reading happens to know - which software would you recommend for speed of trim & placement, using 2GB Ram + UMA Intel Integrated Graphics Card + approx. 500GB HDD; Shotcut, Openshot, Kdenlive, Cinelerra, Fusion 9, or other? (learning curves aside; I already tinker in Fusion, & the others seem basic/intuitive for me).