Feature: indicate where gear will be switched out/added/removed

[Callisto13]

This may not be a feasible thing to add seamlessly, but it would be awesome to have a way to indicate when:

• A piece of gear will be ditched mid-hike (eg. starting with an ice-axe, losing it when getting out of snowy mountains)
• A piece of gear will be added mid-hike (eg. larger water bladder for desert sections)
• A piece of gear which will be plain switched (eg. 10 degree bag for a 30 degree bag)

The easy solution for users is of course to just create separate lists for each changing section, but maybe it would be cool to have all the different weight breakdowns and markers in one place. Maybe grouping? With common or base grouped things which never change, then user named or numbered groupings for changeables, and then the weight breakdown could include Base weights for each group (adding common+number/name) 🤷‍♀️ ?

Again this is 100% a non-essential nice to have. Just something to think on 😄