Few requests for Bookmarks

[usernameduck]

@ahrm , thanks for the great app. Can't emphasise enough how much it has changed my workflow. I have been using bookmarks a lot so following are mostly requests are based on them.
I am using latest alpha version released 2 weeks ago + Macos.

Issues
1. Issue with add_bookmark: In the previous version, whenever i selected a text and then press bookmark - the text would already be present in bookmark textbox, in the recent version it isn't happening.
2. Editing bookmark: It's easy to edit marked_bookmarks , but it is difficult to edit default bookmarks. There is no way to select the later since there is no mark.
3. Deleting bookmark: The feature of deleting a bookmark from go_to_bookmarks isn't working in Macos

Requests
4. Allowing Regex search in bookmarks - I use bookmarks as notes, so a separate command similar to gb and gB for regex search only like rb or rB would be really helpful in going to a particular note.
5. Allowing line breaks in bookmarks - I don't know if a lot of people might find this useful or not - this will be helpful to organise notes in Bookmarks. Right now everything appears as a single paragraph. We can use Enter for line break and Ctrl+Enter for adding a bookmark, an option to enable this in command pallete would be great.
6. Highlighting bookmark text - It would be great if the selected text for bookmark gets highlighted by a default colour. This highlight colour could serve as selecting that bookmark similar to marked_bookmarks. It not only highlights the related text, but we can use delete or edit the bookmark similar to Marked_bookmarks.
7. Marked Bookmarks - In order to select a location for Marked bookmarks we have to switch to mouse/trackpad to mark the location. It would be great if we can select the location using keyboard alone with some sort of integration with keyboard_select.

[ahrm]

1. Should be fixed in ae6efea.
2. You can edit invisible bookmarks by pressing the insert button on keyboard while the bookmark is selected in the goto_bookmark menu.
3. This should be fixed in this recently merged pull request: macOS: fixed backspace bugs #1174, I don't have a mac machine so I can't test it myself.

[usernameduck]

@ahrm, Thanks for the quick reply. For the issue number 2, there is no dedicated Insert function or key for Macos Keyboard. Can i assign it another keyboard shortcut.

[ahrm]

Not currently.