I am a Korean user and wrote this using Google Translate.
Snap function in pip
When you want quick image placement, Event Pancrop is slow.
I want to adjust the size of the media in the preview window.
It is possible to improve the speed by specifying scripts and shortcuts, but the alignment function is weak. If the snap function is added, the work will be much faster.
Video FX List Personality
There is a filter function, but it is inconvenient.
It would be nice if the filter window could be fixed to on, or if it could be selected by folder like in the previous version.
Animated .webp files
Some sites use 'webp' files instead of 'gif'.
Animated .webp files do not work properly in Vegas.
I convert them to GIF files and use them, but it would be nice if they could be improved.
Previous version Selection
Selecting clips by dragging on the timeline is a good choice.
But you have to drag from the top to click Selection.
I want to select as conveniently as before by pressing a shortcut key
For example, assigning it to Alt + Drag.
[Preset related]
Preset sorting function
As the number of presets increases, it becomes harder to sort them.
It would be nice if you could also sort them by name.
I've been suffering from this for years.
Preset Improvements
I want to save more than 2 Video FX as Presets.
One of the great things about Vegas is how intuitive it is.
However, the Plugin Manager is lacking in visibility.
Even if you save them by sorting them into folders, they are all gathered in one place when you load them.
Folders also need to be saved.
I hope this is improved or a replacement feature is added.
Open with Media Generator shortcut key
I know that Event pancrop and Video FX can be assigned shortcut keys.
Is there a way to do this with a script?
Event pancrop, Video FX는 단축키 지정이 가능한걸로 알고있습니다.
혹시 스크립트로 가능한 방법이 있습니까.
[Subtitle-related suggestions]
1. Improved font selection for Protype Titler
Scrolling does not work properly when there are many font files.
Difficulty changing fonts.
In addition, the inability to check the font shape increases fatigue.
2. Responsive subtitles
Responsive subtitles are subtitle backgrounds that automatically adjust length.
The left and right margins of the text background cannot be adjusted.
Adjusting with the space key is in progress, but it is a temporary measure.
3. Quick subtitle content editing function
I want to quickly change only the text while leaving the format as is.
I would like to be able to edit the text right away by pressing the event like Premiere or
I would like to be able to edit based on text.
[Suggestion for adding a powerful subtitle function]
Vegas has a very unfortunate subtitle function.
Korean broadcasting and YouTube consider decorating subtitles important.
I think the reason it was ignored in the Korean market is because of the subtitle function.
This is the feel of the subtitle style used in Korean YouTube and broadcasting.
You can use Protype Titler for gradients and two-line borders, but
it seems that it is not as compatible with Extension as Title&Text.
Here are some YouTube videos that you can refer to for their editing style.
Korean YouTube Editing : 
Korean Broadcast Editing : 
To solve these issues, it would be better to separate it from the existing Text function.
If it is difficult to implement internally in Vegas, I think Vegas Titler is needed like Vegas Effect and Image.
It is difficult, but I hope it will be reflected in the development direction at some point.
Of course, I think it will be difficult to edit with such a high degree of freedom.
We also need to review whether it matches the development direction of Vegas.
However, I really hope that the font list and background margins will be improved.