1) position can be saved into portfolio only from Builder. If your position isn't saved in portfolio, you can save it via Save button. Please specify portfolio folder (Watchlist, Tradebook, Archive, Temporary). QuickSave isn't portfolio folder.
When you have this position already saved in portfolio and you make some change (for example change of seasonal patterns, length paramert, drawing some information or changing indicators in flash chart) save this changes via Update button in builder.
Once you have saved position in portfolio you can find it in selected portfolio folder or in Summary you can see everything (use filter to see only selected folders). To move charts between folders, just edit the chart (pen icon) a find selectbox to change.