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[[TicketQuery(summary=PRO_CHANGE_UNDO_MANAGER_R0, format=table, col=summary|owner|status|type|component|priority|effort|importance, rows=description|analysis_owners|analysis_reviewers|analysis_score|design_owners|design_reviewers|design_score|implementation_owners|implementation_reviewers|implementation_score|test_owners|test_reviewers|test_score|)]]



= Analysis =

== Overview ==
Evaluate the current undo code with regard to PRO_LIB needs.

== Task requirements ==

 * Evaluate the current undo mechanism in PRO_LIB
 * Ensure the ability to undo/redo property changes
 * Ensure the ability to group changes
 * Add the ability to merge change sets

== Task result ==
A module that adds change set management to PRO_LIB

== Implementation idea ==
 * org.sophie2.core.prolib.util.UndoManager
 * org.sophie2.core.prolib.events.ProChange

== Related ==
^(Here you can add related tasks that could be useful or helpful.)^

== How to demo ==
^(In this section you must add instructions for the demo of the task.)^

= Design =

= Implementation =
^(Implementation results should be described and linked here (from the wiki or the repository))^

= Testing =

= Comments =
^(Write comments for this or later revisions here.)