Add macro command to reset/clear variables

[chhoumann]

Summary

Add a macro command that can reset or clear specific variables or all variables during macro execution.

Problem

Variables persist throughout macro execution, which can cause issues when:

• Reusing macros with stale variable data
• Conditional logic depends on clean variable state
• Testing macros with different variable combinations
• Error conditions leave variables in unexpected states

Proposed Solution

Add a new macro command type: Reset Variables Command

Options:

• Reset All Variables: Clear all current variables
• Reset Specific Variables: Choose which variables to clear
• Reset Variable Pattern: Clear variables matching a pattern (e.g., temp_*)

Implementation Ideas

• Add to macro command dropdown alongside existing commands
• Simple UI to select variables to reset
• Could be combined with conditional logic for advanced workflows

Use Cases

• Start macro sections with clean variable state
• Clear temporary variables between macro steps
• Reset variables before calling nested macros
• Error handling - clear corrupted variable data

Benefits

• More predictable macro behavior
• Better debugging capabilities
• Cleaner macro design patterns
• Reduced variable namespace pollution