[Feature request]: Option to change crop speed

[masterzh]

Suggestion

Holding a crop key for so long to crop bigger size videos (or just generally cropping significant part of video) is a bit tedious.
possible solutions ?

• modifier for faster crop while holding some key (not sure if best approach as you already use "ALT" for right/bottom crop, adding another key could make you hold 3 keys :D )
• a GUI based crop (guidelines square selection helper appear where user adjust any side or corner of it to desired crop size, confirmed by hitting enter or something... very well done in Topaz Video AI for example... intuitive and fast)
• option to set "step" size for cropping in Grid player preferences

And yes i know i can edit it in playlist config... but for quick comparison of videos i find doing it manually in player as better way, hence the suggestion...

Generally very happy Grid player even allow for live crop so <3