These are some basics of Textboxes. You can enable all of these under the properties tab.
By default all Roblox textboxes are this
Now simply uncheck the box
And watch as your text will not be removed if you accidentally click off of it.
You may also want to enable Multiline which is automatically set off by default but can be enabled through checking a box in properties.
When enables you to allow users to do this in the textbox
Overall, these are some basic things that can be enabled to improve user experience. I have seen that a lot of developers don’t have these enabled and that’s why I decided to create this.