Tip: Keeping buttons in same relative positions

[DarkStar]

Often, in the TCP and MCP layouts, I want to keep a set of buttons in the same relative positions while being able to move all of them around.

I define an anchor-point and tie the buttons to that position. As in:

set mcp_buttons_anchor [54 105]

set mcp.phase + mcp_buttons_anchor h>257 [0 -19 20 20 0 0 0 0] [0]
set mcp.env    + mcp_buttons_anchor h>257 [0 01 20 20 0 0 0 0] h>210 [0 -19 20 20 0 0 0 0] [0]
set mcp.fx       + mcp_buttons_anchor h>257 [0 18 20 20 0 0 0 0] h>210 [0 -2 20 20 0 0 0 0] [0]
set mcp.fxbyp  + mcp_buttons_anchor h>257 [0 38 20 12 0 0 0 0] h>210 [0 18 20 12 0 0 0 0] [0]

This can be improved to:

set top_left [0 0 0 0 0 0 0 0]
set mcp_buttons_anchor + top_left [54 105] 

set mcp.phase + mcp_buttons_anchor h>257 [0 -19 20 20] [0]
set mcp.env    + mcp_buttons_anchor h>257 [0 01 20 20] h>210 [0 -19 20 20] [0]
set mcp.fx       + mcp_buttons_anchor h>257 [0 18 20 20] h>210 [0 -2 20 20] [0]
set mcp.fxbyp  + mcp_buttons_anchor h>257 [0 38 20 12] h>210 [0 18 20 12] [0]

Then all I need to do is change the anchor-point