Blackmagic Design DaVinci Resolve Advanced Panel - Manual (Page 204)

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Resetting Node Trees Using the Base Memory Commands
If you’re dissatisfied with your current set of operations and want to start over again, there are three
ways you can reset the node tree.
Base Memory:
Resets the currently selected node, eliminating all marks, to the default parameter
settings.
Base Memory All:
Resets every single node in the current node tree, without affecting the node tree’s
structure; all nodes remain where they were. However, each node has been reset to
the default parameter settings, and all marks have been eliminated.
Base Memory Reset:
Deletes every node and mark, and restores a single node set to the default
parameter settings.
Preview and Base Memory
There are also two other methods of quickly dealing with unwanted changes you’ve made to node
trees, without using undo.
Preview Memory:
Lets you preview the effect of any saved grade on the current clip. To preview,
choose Session > Preview Memory (Shift-Command-M), and then right-click any
saved still in the gallery (or memory) and choose Add Correction.
If you like the effect, then you can leave it be. If you don’t like the effect, then
choosing Session > Preview Memory again reverts the clip to the original grade.
Original Memory:
This command lets you quickly revert a clip’s grade to its original state when you first
selected that clip. This is useful for getting immediately back to a clip’s original grade
if you’ve made a series of changes that you then regret.
Please note that selecting another clip in the timeline and then reselect the clip you
made changes to resets what is considered to be the current grade.