Copy from application to specific tab

**Is your feature request related to a problem? Please describe.**
There are three main things I copy into CopyQ: images, text and code (99% of the time, it's Python). I use a script from one of your examples to store images in the `&Images` tab. I'd like a way for code to go into a dedicated `&code` tab, and for general text to go into another tab.

**Describe the solution you'd like**
**First choice**: Is there a way to detect a coding language? Python code would go into a `&Python` tab, undetected could go into a `&Text` tab.
**Second choice**: Copying from a particular application (my IDE is Spyder) into a dedicated tab.
**Third choice**: Copying into the active tab.