Make default save folders on PC but syncing with Onedrive Cloud

Can I autosave all folders/files to my PC and still have any chosen folders sync to Onedrive cloud as a backup? At present all autosaves are saving to Onedrive Personal. Are they accessible if I have no internet connection?

Go to Settings > System > Storage > Advanced storage settings > Where new content is saved. Set the desired drive under New photos and videos will save to: and click on Apply.

Thank you so much for responding so quickly but it is really more things like documents and photos - not so much music and videos. In fact not so interested about them being in the Cloud, as I use File History to an external drive which has everything. But I do like the idea of accessing documents and photos online if required. Anyway, as I subscribe to Office 365 may as well use the TB included in my subscription. I would like to be able to save documents as I finish them, knowing they are on my PC and will sync to Onedrive. Not have them automatically save to Onedrive, and have to remember to 'save as' to the PC documents folder each time.

A couple of options...

1. See this tutorial.

2. I use a little program called SyncFolders which backs up selected files/folders to the OneDrive folder on my PC on a regular schedule. I then let the OneDrive program manage the synching of files/folders in my local OneDrive to the OneDrive cloud.

Hope this helps.