Grid View Groups
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A grid view group is a set of regular channels or RGB channels or Motion Effect rows or beat channels (or, conceivably, other grid view groups) that is nested together, so that it can be collapsed down to a single row in the sequence grid, or expanded to show all of its members. When a grid view group is first created, the grid view group is shown as a single row:
Several collapsed grid view groups
Click the "+" button on the left to expand the group, and the "-" button to collapse it.
The "Strobes" group has been expanded
Notice that the "Unit ID 06: Strobes" row has been hidden in the picture above. This is the sequence grid's "condensed view". Sequences often have many rows and it is usually important to display as many rows as possible to make sequencing go faster. This is the purpose of the condensed view -- to show as many grid rows as possible. So when a parent (the grid view group) is expanded, the parent node is hidden and only the child nodes (the channels) are displayed. For new users this can sometimes be confusing, so S5 allows condensed mode to be turned off. Condensed mode is turned on or off from the Grid View menu.
Condensed mode off, Show tree lines on
In the picture above, condensed mode has been turned off and now you can see both the parent "Unit ID 06: Strobes" and its 4 children, which makes clear the parent/child relationship. Now you can see that a grid view is a hierarchical tree!
But what happened to the sequence grid on the right -- it is showing an "X" pattern? Well, that is the other thing that condensed mode does: collapsed parent rows (where a "+" button is at the beginning of the row) display the effects for their first child in the grid. So in the top picture, the grid row for "Unit ID 06: Strobes" was actually showing the effects for "06.01-Strobes-A". When condensed mode is turned off, there is nothing to be displayed for the parent, which is what the "X" pattern indicates.
The rest of this topic will show the sequence grid with condensed mode enabled.
So again, when a grid view group is collapsed, the effects displayed on its row are the events of its first member (be it a regular channel, RGB channel, or motion effect row). However, applying a tool to the row actually applies it to ALL of its members. For example, with the grid view group collapsed, if you apply the Fade Up tool to its first cell, the result will look like this:
Fade Up tool applied while group was collapsed
But when you expand the grid view group, it becomes apparent that the Fade Up tool was applied to all of the grid view group's members:
The same group, expanded
If you then collapse the grid view group, and apply the Chase tool to it while it is collapsed, no change will be evident from what is displayed:
After applying the Chase tool, while collapsed
But a change did happen - the Chase tool was applied to the entire grid view group. The only reason that no change is evident from what is displayed is because when the grid view group is collapsed, only the effects of the first channel are displayed, and the Chase tool did not alter the effects of the first channel. Expanding the grid view group reveals the change:
Expanded, after a chase
You can convert existing channels (and RGB channels, etc.) so that they become part of a new grid view group, by right-clicking on a channel, prop, or group name on the left side of the grid and select "Convert to Grid View Group" on the pop-up menu. You can also "degroup" a group -- that is, remove the group node and leave the group's children in its place -- by using "Degroup" on that same pop-up menu.
Menu for a grid view group
The complete menu is described in the Item List topic.