Function Syntax: Leader_To_Multileader Version: 1 Date: 5 April 2017 https://www.cadtutor.net/forum/topic/62921-leader-to-mleader-edit-ucs-mode-to-do-need-some-other-help/ Function Syntax: ConvertLeaderAndText2Mleader Commands: LTM, Leader_To_Multileader SEO Friendly Description 🚀 ConvertLeaderAndText2Mleader is an AutoCAD and Civil 3D AutoLISP annotation cleanup tool for converting old LEADER and MTEXT pairs into modern MLEADER objects. 🧰 The command helps update legacy DWG drawings by rebuilding classic leader annotations as editable multileaders while preserving text content, rotation, text width, layer behavior, and selected MLEADER style settings. 📌 It is useful for CAD managers, drafting teams, Civil 3D users, and AutoCAD production workflows where old leader objects must be standardized into clean multileader annotations. Main Commands 🟡 LTM - short command alias that runs the leader to multileader conversion workflow. 🟡 Leader_To_Multileader - full command name for converting one selected LEADER and one selected MTEXT object into a new MLEADER. User Workflow 1. Run LTM or Leader_To_Multileader in the AutoCAD command line. 2. Optionally select an existing MULTILEADER to use as the new style source, or press Enter to use the current MLEADER style. 3. Choose the text case mode: Title case, Lower case, Upper case, Sentence case, Toggle case, or Keep case. 4. Choose whether to keep MTEXT formatting or remove formatting codes. 5. Select exactly one LEADER and one MTEXT object to convert. 6. The program creates the new MLEADER, applies the text and style settings, then erases the original LEADER and MTEXT objects. Functionalities 🔁 Leader to multileader conversion - converts legacy LEADER plus MTEXT annotation pairs into modern AutoCAD MLEADER objects. 🎨 Style source selection - allows picking an existing MULTILEADER to reuse its style, scale, text width, and visual settings. 📝 Text case conversion - supports Title case, Lower case, Upper case, Sentence case, Toggle case, and Keep case options. 🧹 MTEXT formatting cleanup - can keep formatting or remove MTEXT formatting codes for cleaner annotation text. 📐 Leader geometry reconstruction - recreates straight leaders, dog-legged leaders, and simplified multi-vertex leaders as MLEADER geometry. 📌 Layer and width handling - places the new MLEADER on the original text layer when no reference multileader is selected and preserves suitable text width settings. 🔄 Rotation preservation - applies the original MTEXT rotation to the created MLEADER text. 🔒 Safe edit workflow - wraps edits in undo handling and restores key AutoCAD variables such as CMDECHO and OSMODE after completion or error. 🧠 Annotative object support - checks annotative object information through AutoCAD dictionaries and ActiveX helpers. ⚙️ Robust helper functions - uses selection filtering, rounded coordinate handling, Lee Mac string substitution, Lee Mac MTEXT unformatting, and custom selection validation. Technical Notes 🧩 The command uses AutoLISP, Visual LISP COM automation, the AutoCAD MLEADER command, MATCHPROP, entity data reading, and ActiveX property updates. 📘 It loads TcaseSup.lsp for text case conversion support. ⚠️ The routine expects one valid LEADER and one valid MTEXT object for each conversion. The original source notes possible quirks in some rotated UCS or upside-down text situations. Result ✅ The selected legacy LEADER and MTEXT are replaced by a clean modern MLEADER object, helping standardize AutoCAD annotation, improve drawing readability, and reduce manual drafting cleanup. Tags 🏷️ AutoCAD, 🏷️ AutoLISP, 🏷️ Civil 3D, 🏷️ Multileader, 🏷️ MLeader, 🏷️ Leader conversion, 🏷️ MTEXT conversion, 🏷️ Annotation cleanup, 🏷️ CAD drafting, 🏷️ Drawing annotation, 🏷️ Text case conversion, 🏷️ MLEADER style, 🏷️ AutoCAD productivity, 🏷️ Visual LISP, 🏷️ CAD automation