Context menu "Collapse selection" and "Remove collapsible 'if(42) ...' blocks"
Sometimes decompiler's output is overloaded with non-significant lines. The idea is to hide these lines by IDA collapse feature to make understanding of function meaning a bit easier.
Select single-entry/single-exit block of code where the block entry and exit belong to the same outer block and pick "Collapse selection" from the context menu. This code will be enclosed into fake "if (42) { <code> }" statement and collapsed.
All "if (42)" statements in the function may be cleared with context menu "Remove collapsible 'if(42) ...' blocks"
